PCA7448
PROM Programming Adapter for 4500 Series 4524/4554 Group
User's Manual
Rev.2.00
July 1, 2004
REJ10J0254-0200Z
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Contents
Chapter 1. Precautions for Safety ...........................................................................................4
1.1 Safety Symbols and Meanings ..............................................................................4
Chapter 2. Introduction...........................................................................................................6
2.1 Things to Check When Unpacking .......................................................................6
Chapter 3. Specifications ........................................................................................................7
Chapter 4. How to Write the Program ....................................................................................8
4.1 Programming Procedure........................................................................................8
4.2 Attaching the Adapter to the PROM Programmer ................................................9
4.3 Inserting an MCU into the Adapter.....................................................................10
4.4 Precautions When Inserting an MCU into the Adapter ......................................10
4.5 Caution to Be Taken for Handling This Product ................................................11
Chapter 5. Recommended PROM Programmers..................................................................12
Chapter 6. Memory Maps .....................................................................................................13
Chapter 7. Troubleshooting ..................................................................................................14
7.1 Errors That Occur When Writing to PROM .......................................................14
7.2 MCUs Do Not Function Normally......................................................................15
7.3 Other Precautions ................................................................................................15
7.4 How to Request for Support................................................................................16
To use the product properly
Precautions for Safety:
• Both in 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" (page 4). Be sure to read this chapter before using the product.
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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.
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
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 and modifying the product will void
your warranty.
Cautions to Be Taken for 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.
(4) When using this product, check the waste of sponge has not adhered to the connector pins.
IMPORTANT
When Using The Product:
• Attach this product to the IC socket on the PROM programmer properly.
• Insert the MCU to the IC socket of this product properly.
• When inserting and pulling out the MCU, be sure to keep the IC socket side above and horizontal.
• Do not use the PROM programmer's device identification code readout function.
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Chapter 2. Introduction
This product is a PROM programming adapter for 4500 Series 4524 and 4554 Group MCUs (4-bit
MCU). This product is used to write programs into the internal EPROM of MCU with a commercially
available PROM programmer.
This manual mainly explains specifications of this product and how to operate it.
Figure 2.1 shows the external view of the product 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 parts listed in Table 2.1. When unpacking, check to see that it contains
all of the components.
Table 2.1 Package components
Main unit
PCA7448
Interface unit
Connector
PCA7414B*1
PCA7402D*1 (28-pin)
User's manual
PCA7448 User's Manual (this manual)
PCA7448 User's Manual (Japanese)
*1 The PCA7414B and the PC7402D are pre-mounted on the PCA7448.
IMPORTANT
Note on This Product Package:
• If any part is missing or there is any doubt about your product package, contact your
local distributor.
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Chapter 3. Specifications
Table 3.1 lists specifications of the PCA7448.
Table 3.1 Specifications of the PCA7448
Internal on-chip oscillator of the MCU
Operating clock
Power supply
Supplied from Vcc of the PROM programmer
Board to insert a programmable MCU
(IC socket for MCU mounted on it)
PCA7448
(main unit)
Interface board
Board
configuration
PCA7414B*1
(interface unit)
(Connected by two rows of standard-pitch 18-pin connectors
and two rows of standard-pitch 16-pin connectors to the upper
and lower boards)
PCA7402D*1
(connector)
Board to connect to the PROM programmer
(Standard-pitch 28-pin pin-header mounted)
M34524EDFP
64-pin 0.8-mm-pitch QFP
Applicable MCUs
(64P6N-A)
M34554EDFP
IC51-824.KS-8095 (made by Yamaichi Electronics Co., Ltd.)*2
IC socket
*1 The PCA7414B and the PC7402D are pre-mounted on the PCA7448.
*2 For details on the IC socket (IC51-824.KS-8095), contact Yamaichi Electronics Co., Ltd.
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Chapter 4. How to Write the Program
This chapter describes procedures you need to follow to write the program.
For details on how to operate the PROM programmer, refer to the user's manual of the PROM
programmer.
4.1 Programming Procedure
Follow the steps in Figure 4.1 to write the program.
(1) Read the program into the PROM programmer.
(2) Attach the adapter to the IC socket of the PROM programmer.
See "4.2 Attaching the Adapter to the PROM Programmer" (page 9).
(3) Insert the MCU into the adapter.
See "4.3 Inserting an MCU into the Adapter" (page 10).
(4) Check to erase the programming area.
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.
Figure 4.1 Programming procedure
IMPORTANT
Note on Programming by PROM Programmer:
• Some PROM programmers perform the steps (4) to (6) automatically.
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4.2 Attaching the Adapter to the PROM Programmer
As shown in Figure 4.2, attach the No. 1 pin of the PCA7402D connector (standard-pitch 28-pin pin-
header mounted) to the No. 1 pin of the IC socket of the PROM programmer.
Figure 4.2 Attaching the adapter to the PROM programmer
CAUTION
When Attaching the Adapter to the PROM Programmer:
• Be careful when attaching to the PROM programmer because incorrect insertion can
cause fatal damage to the MCU.
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4.3 Inserting an MCU into the Adapter
As shown in Figure 4.3, insert the MCU into the IC socket with the No. 1 pin of the MCU matched
to the No. 1 pin of the IC socket on the PCA7448.
Top view
Figure 4.3 Inserting an MCU
4.4 Precautions When Inserting an MCU into the Adapter
When opening and closing the IC socket, keep the IC socket side above and horizontal. Figure 4.4
shows the state of opening and closing the IC socket to insert an MCU.
Side view
Figure 4.4 Opening and closing the IC socket
CAUTION
When Inserting an MCU into the Adapter:
• Be careful when attaching to the PROM programmer because incorrect insertion can
cause fatal damage to the MCU.
• When opening and closing the IC socket, keep the IC socket side above and
horizontal. Otherwise the inside of the IC socket may become damaged and cause
an electrical insulation failure.
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4.5 Caution to Be Taken for Handling This Product
When not using this product, attach the connector pins of this product to the conductive sponge as
it was shipped from the factory.
And keep it in the place where temperature and humidity are low and direct rays do not hit.
CAUTION
When Handling This Product:
• Do not touch the connector in the IC socket and the pins on the PROM programmer
connector because dirt may cause an electrical insulation failure.
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Chapter 5. Recommended PROM Programmers
The PROM programmers listed in Table 5.1 are recommended for this product. Using the actual
products, we have verified that these PROM programmers can be used to write programs without
problem.
Table 5.1 Recommended PROM programmers
Programming voltage
Manufacturer
Type name
Device
(Vpp)
R4944A
R4945
Advantest Corporation
12.5 V
M5M27C256 mode
R4945A
IMPORTANT
Notes on PROM Programmers:
• Nonconformity occurring by using any other PROM programmers listed in Table
5.1 can not be supported.
• For how to operate the PROM programmer and the latest type of PROM program-
mers, contact the manufacturer to confirm whether it can be used for your product.
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Chapter 6. Memory Maps
Figure 6.1 shows memory maps of the MCU and the PROM programmer.
PROM programmer
(M5M27C256 mode)
MCU
(M34524EDFP/M34554EDFP)
0000h
0000h
Programming area
(10 bits x 16 KB)
*1
Lower 5 bits
3FFFh
4000h
3FFFh
*1
Upper 5 bits
7FFFh
*1: This area is fixed to "1" on the PROM programmer.
*2: When writing, the lower 5 bits and the upper 5 bits are divided and then written into the MCU.
Figure 6.1 Memory maps (M5M27C256 mode)
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Chapter 7. Troubleshooting
The table below summarizes errors to be checked carefully before you determine them to be a fault.
7.1 Errors That Occur When Writing to PROM
Table 7.1 Errors and checkpoints (when newly purchased)
Remedy
Cause
See page
9
Is the adapter attached to the correct position of the PROM
programmer?
Programming adapter
Is the MCU attached to the correct position?
Is the correct device selected?
10
12
PROM programmer
Contact failure
The IC socket of the PROM programmer may be stained. The
socket needs replacing.
-
Table 7.2 Errors and checkpoints (previously written normally)
Remedy
Cause
See page
9
Is the adapter attached to the correct position of the PROM
programmer?
Programming adapter
Is the MCU attached to the correct position?
Is the correct device selected?
10
12
PROM programmer
Contact failure
The IC socket of the PROM programmer may be stained. The
socket needs replacing.
-
-
The PROM programmer connector (28-pin pin-header) at which
the PROM programmer is contacted may be stained. Clean it
with alcohol, etc.
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7.2 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 necessarily operate in the same manner. The differences
between actual MCUs and the emulator are listed below.
(1) About ROM area
With the emulator, the area where the program has not been read serves as NOP instruction (00h),
but the MCU which has been written by the PROM programmer serves as FFh. Therefore the
program happens to appear functioning normally even though it may have gone wild.
(2) About the initial value of the register
With the emulator, the initial value of the register is set to register Z to display the contents of RAM
according to the area for referencing. However, with the actual MCU, the register Z is indefinite
after resetting. For this, if the register Z is not set, the contents of RAM may not be read out
properly.
(3) About oscillations
The emulator is operated by the external clock on the MCU board, while the actual MCU is
operated by the oscillator on the target system. For this, when the oscillator circuit on the target
system does not oscillate properly, the MCU does not function normally.
(4) About differences of the characteristics
The emulator and the actual MCU may differ in characteristics. Consult the user's manuals of the
MCU and the MCU board to check for differences in the characteristics again.
7.3 Other Precautions
(1) About the Recommended PROM Programmers
As MCUs are not totally equal to EPROM, there are some PROM programmer that can not be used
depending on MCU type. The recommended PROM programmers we have verified are listed in
this user's manual. We have verified that those PROM programmers can be used to write programs
without problem.
The other PROM programmers which can set programming area might be used as long as they
pass the verification check, however, we do not assure that they work 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.
(2) About Reading Out of Device Identification Code
Please do not use the PROM programmer's device identification code*1 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.
1
*
Depending on PROM programmer manufacturers, this may be referred to by another name (e.g.
ID code).
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7.4 How to Request for Support
After checking this manual, fill in the following information and email to your local distributor.
For prompt response, please specify the following information:
(1) Contact address
• Company name
• Department
• Responsible person
• Phone number
• Fax number
• E-mail address
(2) Product information
• Name of the programming adapter
• Serial number
• Date of purchase
• Target MCU
• Symptoms (Fails blank check/Cannot write a program/Fails verification etc.)
• Detailed symptoms
• How often does the problem occur? (2 out of 10 etc.)
• When did the problem start to occur? (Since purchase/Used to work correctly)
• Type name of the PROM programmer (Advantest R4945A etc.)
• Specified device when writing to PROM (M27C101 etc.)
• Specified programming area when writing to PROM
• Switch settings of the adapter when writing to PROM
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PCA7448 User's Manual
Rev.2.00
July 1, 2004
REJ10J0254-0200Z
COPYRIGHT ©2004 RENESAS TECHNOLOGY CORPORATION
AND RENESAS SOLUTIONS CORPORATION ALL RIGHTS RESERVED
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