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RENESAS TOOL NEWS on December 16, 2005: RSO-M30870T-EPB-051216D
A Note on Using the Compact Emulator
--M30870T2-CPE--
and the Emulation Probe for the PC7501 Emulator
--M30870T-EPB-- |
Please take note of the following problem in using the Compact Emulator
and the Emulation Probe M30870T-EPB (used together with the PC7501 Emulator)
for the M32C/87 MCU group:
- On All the peripheral functions of the emulator MCU being halted
- Products Concerned
| Product Type |
Serial Number |
| M30870T2-CPE |
Ending in character "A","B","C", or "D" |
| M30870T-EPB |
Ending in character "A","B","C", or "D" |
The serial number, an 8-digit alphanumerical character, is inscribed on the label affixed to the bottom side of each product; for example, 4CM0017B.
- Description
While the M30870T2-CPE or the M30870T-EPB is operating, all the peripheral functions of the emulator MCU will be halted if the following conditions are all satisfied:
- CPU clock frequency is 24 MHz or more.
- Eight-bit data is written into the SFR area (000000h--0003FFh) or the external area using DMAC.
This problem arises from the malfunction of the MCU board M30870T-EPBM mounted in both of the products concerned:
Note that the problem does not arise in actual MCUs.
- Solution
We supply you with the problem-fixed M30870T-EPBM MCU board if you are encountering this problem. So substitute it for yours by going through the following steps:
| (1) |
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Fill in the appended free-of-charge problem-fixed MCU board application form and send it to us by E-mail or FAX. (Send one form per product concerned.) |
| (2) |
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We will send you a problem-fixed M30870T-EPBM board. After receiving the board, substitute it for yours by following the instructions of the M30870T-EPBM User's Manual (for MCU board replacement of the M30870T2-CPE and M30870T-EPB), which is enclosed with the board; then validate the system. |
| (3) |
|
After validating the system, send back us your previous board. |
| (4) |
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Be sure to read the M30870T-EPBM Supplementary Document, which is also enclosed with the board, before running the problem-fixed board. |
SEND TO:
Your local Renesas Technology sales office or distributor
- Notes on Applying for the Board
| (1) |
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Application will be accepted on and after January 16, 2006. |
| (2) |
|
We will send you the problem-fixed board from February 2006 on. |
| (3) |
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It will take 10 working days or more to ship the board after receiving your E-mail or FAX (except for the transportation period). |
- Notes on Using the Problem-Fixed Products
To every product concerned where the problem-fixed MCU board is mounted and the products concerned that will be shipped after this December 16 are made the following changes:
| (1) |
|
The maximum operating clock frequency at which the SFR area of the intelligent I/O function is read out in 1 or 2 wait state is lowered from 30 to 24 MHz. |
| (2) |
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The limitations* imposed on the compact emulator and the emulation probe concerned are modified as follows:
- These products cannot operate at the CPU clock frequencies exceeding 24 MHz under the condition that VCC1 > VCC2.
- If you want to operate them at the CPU clock frequencies exceeding 24 MHz, you must set bit PM13 to 1 (2 wait states) when reading the SFR area of the intelligent I/O function.
| * |
These limitations are read on the following:
- Section 4.5, Notes on Using This Product, in the M30870T-EPB User's Manual
- Section 4.2, Differences between the Actual MCU and Emulator, in the M30870T2-CPE User's Manual
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Because the above changes are those made to the specifications of the products, the following descriptions related to the products concerned are also subject to changes:
- Notes on Using This Product in the user's manuals and release notes
- Footnote *2 in the lists of the specifications on the Web pages
For details, see those documents and Web pages.
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