PCA7400
PROM Programming Adapter for M37281EKSP
User's Manual
Rev. 1.00
July 1, 2003
REJ10J0180-0100Z
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Contents
Chapter 1. Precautions for Safety ...................................................................................................... 4
Chapter 2. Introduction...................................................................................................................... 6
2.1 Things to Check When Unpacking .................................................................................. 6
Chapter 3. Usage ............................................................................................................................... 7
3.1 Programming Procedure................................................................................................... 7
3.2 Attaching the Adapter to a PROM Programmer .............................................................. 8
3.3 Mounting an MCU into the Adapter ................................................................................ 9
3.4 Setting the Programming Areas ..................................................................................... 10
3.5 Recommended PROM Programmers ............................................................................. 10
Chapter 4. Specifications ................................................................................................................. 11
4.1 Specifications ................................................................................................................. 11
4.2 Memory Maps ................................................................................................................ 12
Chapter 5. Troubleshooting ............................................................................................................. 13
5.1 Errors That Occur When Writing to PROM .................................................................. 13
(1) When Newly Purchased ............................................................................................ 13
(2) Previously Written Normally .................................................................................... 13
5.2 MCUs Do Not Function Normally................................................................................. 14
5.3 Other Precautions ........................................................................................................... 14
(1) About the Recommended PROM Programmers....................................................... 14
(2) About Reading Out of Device Identification Code .................................................. 14
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Chapter 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.
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
IMPORTANT
product.
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
Warnings 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.
• Select the proper programming mode of the PROM programmer.
CAUTION
Caution to Be Taken for Modifying 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.
Cautions to Be Taken for Handling This Product:
• Use caution when handling this product. Be careful not to apply a mechanical shock such as falling.
• Do not directly touch the connector pins of this product.
• Be careful with the static electricity when handling this product and the MCU.
Caution for Keeping This Product:
• When not using this product for a long time:
(1) Attach the connector pins of this product to the conductive sponge.
(2) Put it into a conductive polyvinyl, and keep it in the package case shipped from the factory.
(3) Store it in the place where humidity and temperature are low and direct sunshine does not
strike.
IMPORTANT
When Using The Product:
• Attach this product to the IC socket on the PROM programmer properly.
• Mount the MCU to the IC socket of this product properly.
• When opening and closing the IC socket of this product, be sure to keep it horizontal.
• Be sure to specify the programming area of the PROM programmer properly.
• Do not use the PROM programmer's device identification code readout function.
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Chapter 2. Introduction
The PCA7400 is a PROM programming adapter for the M37281EKSP (16-bit MCU). This adapter
is a tool that can be used to write programs into an internal PROM of MCUs using a commercially
available PROM programmer.
This manual describes the specifications and the operation of the PCA7400.
Figure 2.1 shows the external view of the PCA7400 and its constituent parts.
Figure 2.1 External view of the adapter and its constituent parts
2.1 Things to Check When Unpacking
This product consists of the following parts listed in Table 2.1. When unpacking, check to see that
it contains all of the components shown in Table 2.1 below.
Table 2.1 Package components
Main unit
PCA7400
Connector
User's manual
PCA4738E (32-pin)
This manual
If any part is missing or there is any doubt about your product package, contact your local distributor.
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Chapter 3. Usage
This chapter describes procedures you need to follow when writing the program.
For details on how to operate the PROM programmer, refer to the user's manual of the PROM
programmer.
3.1 Programming Procedure
Follow these procedures (1) through (6) to write the program into the MCU.
(1) Mount the MCU into the adapter (see section 3.3).
(2) Attach the adapter to the IC socket of the PROM programmer (see section 3.2).
(3) Set the programming area with the PROM programmer (see section 3.4).
(4) Using the PROM programmer's erase check function, check whether data can be written into
the MCU's programming area.*
(5) Write the program into the programming area of the MCU using the PROM programmer.*
(6) Verify the programming area of the MCU using the PROM programmer to check whether the
program has been written into the MCU correctly.*
Notes
* Be sure to set the programming area. Otherwise the mode's shift to the programming mode may
not be performed successfully. The erase check function and others may not also be performed
completely.
* Some PROM programmers perform the steps (4) to (6) automatically.
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3.2 Attaching the Adapter to a PROM Programmer
As shown in Figure 3.1, attach the pin No. 1 of the connector (standard-pitch 32-pin pin-header
mounted) to the pin No. 1 of the IC socket of the PROM programmer.
Be careful when attaching the adapter because incorrect insertion can cause fatal
damage to the MCU.
Figure 3.1 Attaching the adapter to a PROM programmer
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3.3 Mounting an MCU into the Adapter
As this product uses an IC socket for 54-pin shrink DIP, mount the MCU into the IC socket with the
No. 1 pin of the MCU matched to the No. 2 pin of the IC socket on the PCA7400 (SET BOTTOM).
Be careful when inserting the MCU because incorrect insertion can cause fatal
damage to the MCU.
Top view
No. 1 pin of socket
No. 1 pin of MCU
IC socket on the PCA7400
Figure 3.2 Mounting an MCU
CAUTION
Caution to Be Taken for Handling MCU:
• Do not touch the connector in the IC socket and the pins on the PROM programmer
connector. Otherwise it can cause an electrical insulation failure because of dirt.
When not using, attach the connector pins of this product to the conductive sponge
as it was shipped from the factory.
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3.4 Setting the Programming Areas
When writing the program into the MCU, be sure to set the programming area. And also, specify its
device of the PROM programmer.
Table 3.1 Programming areas
PROM programmer
ROM area
of MCU
MCU type name
M27281EKSP
ROM capacity
Device
Programming area
Internal ROM
(60K+20K bytes)
0100016--0FFFF16
1B00016--1FFFF16
0100016--0FFFF16
1B00016--1FFFF16
M5M27C101
OSD display
(20400+9672 bytes)
1080016--157FF16
1800016--1ACFF16
1080016--157FF16
1800016--1ACFF16
3.5 Recommended PROM Programmers
The PROM programmers listed in Table 3.2 are recommended for the adapter PCA7400. Using the
actual products, we have verified that these PROM programmers can be used to write programs
without problem. Nonconformity occurring by using any other PROM programmers can not be
supported. For the latest type of PROM programmers, contact the manufacturer to confirm whether
it can be used for your product.
Table 3.2 Recommended PROM programmers
Manufacturer
Type name
R4945
Device
Programming voltage (VPP)
12.5 V
Advantest
Corporation
M5M27C101 mode
R4945A
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Chapter 4. Specifications
4.1 Specifications
Table 4.1 lists specifications of the PCA7400.
Table 4.1 Specifications
Applicable MCUs
M37281EKSP
IC59-5406-G4 (made by Yamaichi Electronics Co., Ltd.)
54-pin shrink DIP socket
IC socket
8 MHz
Operating clock frequency
Power supply
(Supplied by the ceramic oscillator mounted on the adapter)
Supplied from Vcc of the PROM programmer
Board to insert a programmable MCU
(IC socket for MCU mounted on it)
PCA7400
Board
configuration
Board to connect to the PROM programmer
(Standard-pitch 32-pin pin-header mounted)
PCA4738E
CAUTION
MCU's Latest Information:
• For the latest information of the MCUs, visit the Renesas Tools Homepage.
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4.2 Memory Maps
Figure 4.1 shows memory maps of the MCU and the PROM programmer.
0000016
0100016
0000016
0100016
Unused area
Internal ROM area
(60K bytes)
Programming area
0FFFF16
1000016
0FFFF16
1000016
Unused area
1080016
1080016
OSD ROM area
(20400 bytes)
Programming area
Unused area
157FF16
1800016
157FF16
1800016
OSD ROM area
(9672 bytes)
Programming area
1ACFF16
1B00016
1ACFF16
1B00016
Unused area
Expansion ROM area
(20K bytes)
Programming area
1FFFF16
1FFFF16
MCU
PROM programmer
Figure 4.1 Memory map
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Chapter 5. Troubleshooting
The table below summarizes errors to be checked carefully before you determine them to be a fault.
5.1 Errors That Occur When Writing to PROM
(1) When Newly Purchased
Remedy
Cause
See page
8
Is the adapter attached to the correct position of the PROM
programmer?
Programming adapter
Is the MCU attached to the correct position?
Is the area specification set correctly?
Is the correct device selected?
9
10
10
PROM programmer
Contact failure
The IC socket of the PROM programmer may be stained. The
socket needs replacing.
-
(2) Previously Written Normally
Remedy
Cause
See page
8
Is the adapter attached to the correct position of the PROM
programmer?
Programming adapter
PROM programmer
Is the MCU attached to the correct position?
Is the area specification set correctly?
Is the correct device selected?
9
10
10
The IC socket of the PROM programmer may be stained. The
socket needs replacing.
-
-
Contact failure
The PROM programmer connector at which the PROM
programmer is contacted may be stained. Clean it with
alcohol, etc.
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5.2 MCUs Do Not Function Normally
The program operates normally on the emulator, but when the MCU that has normally been written
is attached the same program does not function normally.
(1) Is the offset address specified correctly when copying data into the PROM programmer?
(2) In the emulator, NOPs are often inserted in the area where the program has not been read, therefore
the program happens to appear functioning normally even though it may have gone wild. Check
your program again.
(3) The emulator and the actual MCU may differ in characteristics. Consult the user's manual of the
emulation pod to check for differences in characteristics again.
5.3 Other Precautions
(1) About the Recommended PROM Programmers
Not all PROM programmers available on the market can be checked to see if they function properly.
There are several PROM programmers that we have verified to function properly. These products are
listed as recommended PROM programmers in this user's manual. Other PROM programmers may
also be used providing that you verified them to function properly.
Note: No matter which type of PROM programmer you use, it is necessary to verify completion of
programming by executing screening, etc. that are stipulated for each MCU used.
(1) About Reading Out of Device Identification Code *1
Please do not use the PROM programmer's device identification code readout function.
Using this function may break down the MCU. The device identification code is included in EPROM
to indicate the manufacturer code and device code; it is not included in the MCU.
*1 Depending on PROM programmer manufacturers, this may be referred to by another name (e.g.
ID code).
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PCA7400 User's Manual
Rev. 1.00
July 1, 2003
REJ10J0180-0100Z
COPYRIGHT ©2003 RENESAS TECHNOLOGY CORPORATION
AND RENESAS SOLUTIONS CORPORATION ALL RIGHTS RESERVED
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