Renesas Network Card M34570T MCU User Guide

M34570T-MCU  
MCU Board for PC4504 Emulator System  
User's Manual  
Rev.1.00  
September 1, 2003  
REJ10J0277-0100Z  
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Contents  
Preface ....................................................................................................................................4  
1. Precautions for Safety.........................................................................................................5  
1.1 Safety Symbols and Meanings ..............................................................................5  
2. Handling Precautions..........................................................................................................9  
3. Contents of the M34570T-MCU Package ........................................................................11  
3.1 Things to Check When Unpacking .....................................................................11  
3.2 Other Necessary Products ...................................................................................11  
4. M34570T-MCU................................................................................................................13  
4.1 Outline .................................................................................................................13  
4.2 Specifications ......................................................................................................14  
4.3 Description of Switches ......................................................................................15  
4.4 Description of Connectors...................................................................................16  
4.5 Connection to the Target System ........................................................................19  
4.6 LED .....................................................................................................................21  
5. Precautions to be Taken When Debugging ......................................................................23  
5.1 Reset ....................................................................................................................23  
5.2 System Clock ......................................................................................................23  
5.3 Real-time Capability of Timer ............................................................................23  
5.4 Watchdog Timer..................................................................................................24  
5.5 Low-voltage Detection ........................................................................................24  
5.6 P0, P1 Port Pullup ...............................................................................................24  
5.7 Port I/O Timing ...................................................................................................25  
5.8 Power-down Mode ..............................................................................................26  
5.9 Program Execution (G, GB)................................................................................27  
5.10 External Trigger ................................................................................................29  
6. Connection Circuit Diagram.............................................................................................31  
Appendix A ..........................................................................................................................32  
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Preface  
This user's manual describes the specifications of the M34570T-MCU emulator board for Renesas  
4570 group of 4-bit single-chip microcomputers. M34570T-MCU is an MCU board for the PC4504  
emulator. For the PC4504 emulator main unit and the M3T-PD45 emulator debugger, refer to each  
user's manual.  
To use the product properly  
Precautions for Safety  
• In both this User's Manual and on the product itself, several icons are used to insure  
proper handling of this product and also to prevent injuries to you or other persons,  
or damage to your properties.  
• The icons' graphic images and meanings are given in "Chapter 1. Precautions for  
Safety". Be sure to read this chapter before using the product.  
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1. Precautions for Safety  
In both the user's manual and on the product itself, several icons are used to insure proper handling  
of this product and also to prevent injuries to you or other persons, or damage to your properties.  
This chapter describes the precautions which should be taken in order to use this product safely and  
properly. Be sure to read this chapter before using this product.  
1.1 Safety Symbols and Meanings  
If the requirements shown in the "WARNING"  
sentences are ignored, the equipment may  
cause serious personal injury or death.  
WARNING  
If the requirements shown in the "CAUTION"  
sentences are ignored, the equipment may  
malfunction.  
CAUTION  
It means important information on using this  
product.  
IMPORTANT  
In addition to the three above, the following are also used as appropriate.  
means WARNING or CAUTION.  
Example:  
CAUTION AGAINST AN ELECTRIC SHOCK  
means PROHIBITION.  
Example:  
DISASSEMBLY PROHIBITED  
means A FORCIBLE ACTION.  
Example:  
UNPLUG THE POWER CABLE FROM THE RECEPTACLE.  
The following pages describe the symbols "WARNING", "CAUTION", and "IMPORTANT".  
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WARNING  
Warning for Installation:  
• Do not set this product in water or areas of high humidity. Make sure that the main unit does not  
get wet. Spilling water or some other liquid into the main unit can cause an unrepairable damage.  
Warning for Use Environment:  
• This equipment is to be used in an environment with a maximum ambient temperature of 35°C. Care  
should be taken that this temperature is not exceeded.  
CAUTION  
Cautions to Be Taken for This Product:  
• Do not disassemble or modify this product. Disassembling or modifying this product can cause  
damage. Disassembling and modifying the product will void your warranty.  
• Use caution when handling the main unit. Be careful not to apply a mechanical shock.  
• Do not pull the emulator probe (80-wire half-pitch cable or 40-wire normal-pitch cable) to  
disconnect from the emulator main unit.  
• Do not use inch-size screws for this equipment. The screws used in this equipment are all ISO  
(meter-size) type screws. When replacing screws, use same type screws as equipped before.  
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IMPORTANT  
Notes on Differences between Actual MCU and Emulator:  
• Emulator operation differs from emulation of a mask MCU, as listed below. For details refer to  
"Chapter 5. Precautions to be Taken When Debugging".  
(1) Reset condition  
(2) Initial values of internal resource data at power-on  
(3) Internal ROM and RAM capacities, etc.  
(4) Electrical characteristics  
(5) Operation in the power-down mode  
(6) Operation of the watchdog timer function  
• Therefore, always be sure to evaluate your system with an evaluation MCU (onetime version).  
Also, be sure to perform board-mounted evaluation with ES (Engineering Sample) version MCU  
to make final confirmation of device operation before starting mask production.  
Note on the Target System:  
• The operating voltage of the M34570T-MCU is +3.0 V or +5.0 V. Therefore the target's supply  
voltage should be in the range of +3.0V ±10% or 5.0V ±10%.  
Notes on Connecting the Target System:  
• When connecting the emulator probe, be careful to the wrong connection.  
• When connecting the emulator probe, be careful to the warp of the cable. The warp may cause  
breaking the wire.  
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2. Handling Precautions  
When using the M34570T-MCU board, pay attention to the following:  
(1) About the emulator  
To use the M34570T-MCU board, you always need to install it on the PC4504 emulator main unit.  
(2) About the MCU board installation  
Before installing (and removing) the MCU board, always be sure to power off the PC4504  
emulator main unit and unplug its power cord from the outlet. For details on how to install and  
remove the MCU board, see "Chapter 2. Setup" in the PC4504 System User's Manual.  
(3) Emulator debugger  
When using the M34570T-MCU board to debug your program, you need the M3T-PD45  
emulator debugger (sold separately). Be sure to use the data file for 4570 group included with the  
M3T-PD45 emulator debugger.  
(4) Registers that can be operated from M3T-PD45  
Table 2.1 lists the registers that can be operated from M3T-PD45 for 4514 group MCUs. The "O"  
mark in the table means that the register can be operated; the "X" mark means that the register can  
not be operated.  
Table 2.1 Registers that can be operated from M3T-PD45  
Register  
Reference  
Modification  
Register  
W1  
Reference Modification  
PC  
CY  
A
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
X
O
O
O
O
X
O
O
O
O
O
O
O
O
O
O
O
O
O
W2  
W3  
B
W5  
X
C2  
Y
S1  
O
O
O
O
X
Z
PU0  
K0  
D
E
MR  
R1  
SP  
V1  
V2  
I1  
O
O
O
R2  
X
R3L  
R3H  
X
X
(5) About the system clock frequency  
When setting bit 3 in the clock control register MR to "0" (high-speed mode, system clock = f  
(XIN)), the system clock frequency should be in the following ranges.  
• 3V: XIN 1.0MHz  
• 5V: XIN 2.0MHz  
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3. Contents of the M34570T-MCU Package  
3.1 Things to Check When Unpacking  
Table 3.1 shows the contents of the M34570T-MCU package. When unpacking your M34570T-  
MCU package, check to see that all of these components are included.  
Table 3.1 Contents of M34570T-MCU  
Item  
1
Product name  
Quantity  
M34570T-MCU  
1
1
1
1
1
1
1
1
80-wire half-pitch cable (40cm)  
2
40-wire normal-pitch cable (10cm)  
3
2-wire cable for external trigger signal (50cm)  
PCA4029 pitch converter board  
4
5
OSC-2 oscillator circuit board (J1 connector mounted)  
M34570T-MCU English user's manual (this manual)  
M34570T-MCU Japanese user's manual  
6
7
8
*1 M34570T-MCU has an oscillator circuit board OSC-2 (for 4.19MHz) that is incorporated when  
shipped from the factory. In addition, it comes with an oscillator circuit board OSC-2, with only  
a connector J1 mounted.  
*2 Keep the packaging carton and cushion material of the M34570T-MCU to transport it for repair  
or for other purposes in the future.  
*3 If you find any item missing or faulty, or any suggestion, contact your local distributor.  
3.2 Other Necessary Products  
To bring forward programs development on the 4570 group of 4-bit microcomputers, the products  
given below are necessary in addition to those contained in the package above. Get them separately  
to be ready when necessary.  
(1) Emulator main unit:  
(2) Emulator debugger:  
(3) Programming adapter:  
PC4504  
M3T-PD45  
PCA7425  
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4. M34570T-MCU  
4.1 Outline  
By using with the PC4504 emulator main unit, M34570T-MCU can make up an emulator system  
which can be operated by a personal computer.  
Figure 4.1 shows the development support system configuration.  
Figure 4.1 Development support system configuration  
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4.2 Specifications  
Table 4.1 lists specifications of M34570T-MCU.  
Table 4.1 M34570T-MCU Specifications  
M34570MX-XXXFP, M34570EXFP  
Applicable MCUs  
Evaluation MCU  
M34570E8FP (mounted)  
Medium-speed mode:  
High-speed mode:  
4.19MHz  
1.0MHz  
3V  
5V  
Maximum operating  
clock frequency  
Medium-speed mode:  
High-speed mode:  
4.19MHz  
2.0MHz  
3V or 5V  
Target system voltage  
Power supply  
Supplied by the PC4504's internal power supply (+5V, +12V)  
Port  
Output type  
Direction  
output  
Device used  
D0 to D5  
Input: 74HC541  
Output: 74LS06  
N-channel  
open drain  
Port emulation  
P00 to P03  
P10 to P13  
P20 to P21  
Input/output  
Input  
-
Input: 74HC08  
Board dimensions  
233 (L) x 135 (W) x 26 (H) mm  
Operating temperature  
5 to 35°C (non-condensing)  
M34570T-MCU  
80-wire half-pitch cable  
40-wire normal-pitch cable  
External trigger cable  
PCA4029  
Product configuration  
OSC-2 (for changing frequencies)  
*1 M34570T-MCU has an oscillator circuit board OSC-2 (for 4.19MHz) that is incorporated when  
shipped from the factory. In addition, it comes with an oscillator circuit board OSC-2, with only  
a connector J1 mounted.  
*2 M34570T-MCU operates at the medium-speed mode (instruction-clock f (XIN)/12) immediately  
after a RESET is released.  
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4.3 Description of Switches  
The M34570T-MCU board has three switches. Figure 4.2 shows the positions of these switches.  
Tables 4.2 list the functions of the switches. Shown in Table 4.2 is the preset switch positions that  
are set before the MCU board is shipped from the factory.  
Figure 4.2 Positions of switches  
Table 4.2 Functions of switches  
Description  
Factory-setting  
Switch position  
Label  
Does not connect the VDD of the M34570T-MCU to  
the VDD of the target system.  
ON  
ON  
OFF  
OFF  
OFF  
SW1  
Connects the VDD of the M34570T-MCU to the VDD  
of the target system.  
ON  
OFF  
Set the MCU’s ROM size.  
• Set "4" (M4)  
• Set "8" (M8)  
SW2 ROMSIZE  
• Set "D" (MD)  
8
3V  
3V  
5V  
5V  
Operates the target MCU at +5V.  
Operates the target MCU at +3V.  
5V  
SW3  
3V  
5V  
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4.4 Description of Connectors  
The M34570T-MCU board has five connectors. Table 4.3 lists the functions of these connectors.  
Figure 4.3 shows the positions of connectors on the MCU board.  
Table 4.3 Connectors  
Connector  
Function  
Connects the evaluation MCU bus.  
Connects the monitor CPU bus.  
J1  
J2  
J3  
J4  
J6  
Connects the target system. (80-pin)  
Connects the external trigger signal. (2-pin)  
Connects the oscillator circuit board. (4-pin)  
Figure 4.3 Positions of the connectors  
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(1) Connector J3  
Table 4.4 lists the pin assignments of the 80-wire half-pitch connector (J3) for connecting the  
PCA4029. And Figure 4.4 shows the connector J3 pin layout.  
Table 4.4 Pin assignments of the connector J3  
Note: "I" in the direction column denotes "Input"; "O" denotes "Output"; "I/O" denotes "Input/  
output"; "-" denotes "Not connected".  
Figure 4.4 Connector J3 pin layout  
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(2) Connector J4  
Use the 2-wire cable for external trigger signals (included) for the connector J4 (for external trigger  
signals). Connect the black clip of the external trigger cable to GND, and use the white clip for external  
trigger signal input. External signals are used as external trigger breaks, or event input of trace points  
by an external trigger. Table 4.5 lists the pin assignments of the connector J4.  
Table 4.5 Pin assignments of connector J4  
Pin No.  
Signal  
TRIG  
GND  
Function  
External trigger signal input  
GND input  
1
2
(3) Connector J6  
The connector J6 is a connector used to connect an oscillator circuit board OSC-2. Table 4.6 lists  
the pin assignments of the connector J6. Figure 4.5 shows the pin layout of the connector J6. For  
the 4.19MHz operation with the oscillator circuit board OSC-2, see Figure 4.6.  
When changing the frequency of the oscillator, use the oscillator circuit board OSC-2 (only the  
connector J1 mounted) included.  
When changing the frequency, the constants depend on the oscillator you use. It's advisable to  
refer to the values recommended by the manufacturer of the oscillator.  
Table 4.6 Pin assignments of connector J6  
Pin No.  
Signal  
Function  
Power supply  
GND  
1
2
3
4
VCC  
GND  
CLK  
Clock input  
GND  
GND  
Figure 4.5 Pin layout of connector J6  
Figure 4.6 Circuit diagram of OSC-2 (4.19MHz)  
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4.5 Connection to the Target System  
When connecting the M34570T-MCU board to the target system:  
Use the 40-wire normal-pitch cable (included) to connect the 40-pin dual-in-line pins on the target  
system. Following products are required for connection to the target system.  
• 80-wire half-pitch cable (40cm)  
• PCA4029 pitch converter board  
• 40-wire normal-pitch cable (10cm)  
Figure 4.7 depicts the M34570T-MCU board connected to the target system using the 40-wire  
normal-pitch cable. Table 4.7 lists the connector signal assignments of the 40-wire normal-pitch  
cable. Figure 4.8 shows the pin layout of the 40-wire normal-pitch cable.  
Figure 4.7 Connection to the target system using dual-in-line pins  
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Table 4.7 40-wire normal-pitch cable pin assignments  
Figure 4.8 Pin layout of 40-wire normal-pitch cable  
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Some signals connected to the target system are emulated on the M34570T-MCU board. For  
details, see "Chapter 6. Connection Circuit Diagram".  
• Pins connected directly to the target system (5 types, 15 lines)  
(1) P30 to P33  
(2) P40 to P43  
(3) CARR  
(4) D6 to D9  
(5) VSS  
(6) VDCE  
• Pins connected to the target system via emulation circuits etc. (6 types, 18 lines)  
(1) P00 to P03  
(2) P10 to P13  
(3) P20 to P21  
(4) D0 to D5  
(5) RESET*  
(6) VDD  
• Pins not connected to the target system (3 types, 3 lines)  
(1) XIN  
(2) XOUT  
(3) CNVSS  
4.6 LED  
Figure 4.9 shows the LED layout of M34570T-MCU. The LED lights in green when the power is  
supplied to the MCU board.  
Figure 4.9 Layout of LED  
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5. Precautions to be Taken When Debugging  
5.1 Reset  
The M34570T-MCU uses a 74AC14 for its RESET signal input buffer, so that its electrical  
characteristics differ from those of the actual chip. Table 5.1 lists the RESET signal input  
characteristics of the M34570T-MCU.  
Table 5.1 RESET signal input characteristics  
Item  
Symbol  
Voltage  
VCC=3.0V  
VCC=4.5V  
VCC=5.5V  
VCC=3.0V  
VCC=4.5V  
VCC=5.5V  
VCC=3.0V  
VCC=4.5V  
VCC=5.5V  
Minimum  
-
Maximum  
2.2V  
3.2V  
3.9V  
-
H-level threshold voltage  
VP  
-
-
0.5V  
0.9V  
1.1V  
0.3V  
0.4V  
0.5V  
VN  
VH  
-
L-level threshold voltage  
Hysteresis voltage  
-
1.2V  
1.4V  
1.6V  
5.2 System Clock  
Depending on the supply voltage and operation mode, use one of the following frequencies for the  
system clock:  
• Supply voltage 5V: 4.2MHz or less (medium-speed mode)  
1.0MHz or less (high-speed mode)  
• Supply voltage 3V: 4.2MHz or less (medium-speed mode)  
2.0MHz or less (high-speed mode)  
To change this clock frequency to suit that of the target system, use the oscillator circuit board OSC-2  
(included) with the necessary parts attached.  
For details about the oscillation circuit constants, consult your oscillator manufacturer.  
5.3 Real-time Capability of Timer  
The PC4504 and M34570T-MCU have their internal clock operating even during emulation, so that  
the timer values keep changing.  
Example:  
(1) When single-stepping the program  
(2) When registers or internal RAM are referenced or modified  
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5.4 Watchdog Timer  
The M34570T-MCU does not have an operational watchdog timer. Therefore, use an evaluation  
MCU (OTP version) to verify the operation associated with a watchdog timer.  
The M34570T-MCU outputs a signal whose waveform is shown below from the check pin TP5  
during WRST instruction execution cycles. This signal allows you to check the initialization cycle  
of a watchdog timer.  
WRST instruction  
Next WRST instruction  
System clock  
XIN  
WRST  
Figure 5.1 Waveform output from check pin TP5  
5.5 Low-voltage Detection  
Because the power to the evaluation MCU of M34570T-MCU is supplied from the M34570T-MCU,  
low-voltage cannot be detected. To evaluate the operation associated with low-voltage detection, use  
an evaluation MCU (OTP version).  
5.6 P0, P1 Port Pullup  
Port P0 and P1's (M34570T-MCU) resistance value of the pullup register is 68k.  
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5.7 Port I/O Timing  
(1) Port input timing  
Port input timings are the same as with the actual MCUs.  
(2) Port output timing  
When using the M34570T-MCU, output timings are different from those of the actual MCUs for  
the following ports that are configured with port emulation circuits:  
• Ports P00 to P03  
• Ports P10 to P13  
• Ports D0 to D5  
With the actual MCUs, changes occur at the beginning of the T3 state of an output instruction.  
With the M34570T-MCU, changes occur at the beginning of the T2 state of the next output  
instruction. Figure 5.2 shows the port output timings of the actual MCUs and M34570T-MCU.  
For the other ports, the output timings are the same as with the actual MCUs.  
Output instruction  
Next output instruction  
System clock  
XIN  
P0, P1, D port  
output timings  
on actual MCUs  
P0, P1, D0 to D5  
port output timings of  
M34570T-MCU  
Figure 5.2 P0, P1 and D port output timings  
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5.8 Power-down Mode  
In the power-down mode, the M34570T-MCU operates differently from the actual chip of each  
MCU.  
(1) Power-down operation of M34570T-MCU  
Although the actual chip of each MCU is placed in the power-down mode by executing a  
combination of EPOF and POF instructions, the M34570T-MCU is placed in the power-down  
mode by only the POF instruction.  
In the M34570T-MCU, the EPOF instruction does not have any effect.  
Program example 5.1  
Actual MCU  
The power-down mode works.  
RC  
INY  
EPOF  
POF  
M34570T-MCU  
The power-down mode works.  
Program example 5.2  
Actual MCU  
The power-down mode does NOT work.  
RC  
INY  
POF  
M34570T-MCU  
The power-down mode works.  
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5.9 Program Execution (G, GB)  
The PC4504 and M34570T-MCU’s hardware are subject to the following restrictions with respect  
to the operation of the program execution commands (G and GB).  
(1) Continuous description of instructions  
Hardware breakpoints set in a continuous description of instructions following one after another  
do not cause a break to occur in the continuous description of instructions. A break occurs only  
after fetching the address where the continuous description of instructions is discontinued. (See  
Program example 5.3)  
However, a break does occur even in a continuous description of instructions when an external  
trigger break or forced break is encountered. For execution to be resumed in this case, you need  
to make sure that the execution start address is next to the continuous description of instructions.  
(See Program example 5.4)  
Program example 5.3  
LA  
0
1
2
3
POINT:  
LA  
; Continuous description of instructions  
LA  
POINT+2:  
XAM  
If a break is set at POINT, execution is halted immediately before the XAM instruction at  
address POINT+2.  
Program example 5.4  
LA  
0
1
2
3
POINT:  
LA  
; Continuous description of instructions  
POINT+1:  
POINT+2:  
LA  
XAM  
If a forced or external trigger break is applied at POINT, execution is halted at POINT+1.  
When resuming program execution after the break, make sure that the start address is at  
POINT+2, an address immediately after the continuous description of instructions is  
discontinued.  
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(2) Skip instructions (e.g. SNZP, INY, DEY, SZB, SEAM, SZC and RTS)  
When a skip instruction skips the next instruction, a breakpoint set in the skipped instruction does  
not cause execution to halt. (See Program examples 5.5 and 5.6)  
Program example 5.5  
RC  
SC  
SZC  
TABP  
TAM  
SZC  
TABP  
TAM  
POINT:  
POINT:  
POINTA:  
0
POINTA:  
0
A breakpoint set at address POINT causes execution to halt immediately before address  
POINTA in only the case of the instruction shown on the right side.  
Program example 5.6  
RC  
; Skip instructions  
INY  
TABP  
LA  
POINT:  
0
If a break with pass count is set at address POINT, the count is taken and execution is  
halted only when the instruction at address POINT is executed.  
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5.10 External Trigger  
(1) External trigger signal input timing  
The latch timing of the external trigger signal is shown in Figure 5.3.  
Instruction  
Next instruction  
System clock  
XIN  
External trigger clock  
TRIG  
Figure 5.3 Latch timing of external trigger signal  
(2) External trigger signal input characteristics  
Trigger breaks work according to the condition (leading edge/trailing edge) of signals input from  
the external trace cable. The external trigger signals of the trace points and the external trigger  
signals of the break points use the same signals.  
The input characteristics of the external trigger signals are shown in Table 5.2 below. See the table  
before using external trigger signals.  
Table 5.2 External trigger signal input characteristics  
Item  
Symbol  
Voltage  
VCC=2.0V  
VCC=4.5V  
VCC=2.0V  
Maximum  
-
Minimum  
1.5V  
VIH  
H-level input voltage  
3.15V  
-
-
-
0.5V  
1.35V  
L-level input voltage  
VIL  
VCC=4.5V  
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MEMO  
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6. Connection Circuit Diagram  
Figure 6.1 shows the connection circuit diagram of M34570T-MCU. This circuit diagram depicts the  
M34570T-MCU connection centering on circuits connected to the target system. Emulator control  
blocks and other similar circuits that are not connected to the target system are omitted in this diagram.  
Figure 6.1 Connection circuit diagram  
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Appendix A. How to Request for Repair  
If your product is found faulty, follow the procedure below to send your product for repair.  
Customer  
Fill in the Repair Request Sheet included with this product, then send it  
along with this product for repair to your local distributor. Make sure  
that information in the Repair Request Sheet is written in as much detail  
as possible to facilitate repair.  
Distributor  
After checking the contents of fault, the distributor should please send  
the faulty product along with the Repair Request Sheet to Renesas  
Solutions Corp.  
Renesas Solutions When the faulty product is repaired, it will be returned to the customer  
at the earliest convenience.  
CAUTION  
Note on Transporting the Product:  
• When sending your product for repair, use the packing box and cushion material supplied with this  
product when delivered to you and specify handling caution for it to be handled as precision  
equipment. If packing of your product is not complete, it may be damaged during transportation.  
When you pack your product in a bag, make sure to use conductive polyvinyl supplied with this  
product (usually a blue bag). When you use other bags, they may cause a trouble on your product  
because of static electricity.  
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M34570T-MCU User's Manual  
Rev.1.00  
September 1, 2003  
REJ10J0277-0100Z  
COPYRIGHT ©2003 RENESAS TECHNOLOGY CORPORATION  
AND RENESAS SOLUTIONS CORPORATION ALL RIGHTS RESERVED  
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