tmp89fm82t TOSHIBA Semiconductor CORPORATION, tmp89fm82t Datasheet - Page 400

• Manufacturer Part Number: tmp89fm82t
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

22.8
Operation Commands
RA000
5. Flash memory SUM output command
6. Product ID code output command
7. Flash memory status output command
8. Mask ROM emulation setting command
9. Flash memory security setting command
to the RAM address specified by the first data record, and starts to execute the user program. If the security
program is enabled, the RAM loader command is not executed. In this case, execute Chip Erase beforehand
by using the flash memory erase command. Before executing the RAM loader command, the TMP89FM82T
performs password authentication except where a product is blank. If a password is not authenticated, the
RAM loader command is not executed.
results are returned.
and on the RAM area respectively. The external controller reads this code to identify the product to which
data is to be written.
reads this code to identify the status of flash memory.
PROM mode, the flash memory write command, Sector erase of flash memory erase command, Reaad com-
mand, and RAM loader command are prohibited. To disable the flash memory security program, execute
Chip Erase by using the flash memory erase command.
Checksums in the entire flash memory area (0x8000 through 0xFFFF) are calculated, and the calculation
This is a code output used to identify a product. The output code consists of information on the ROM area
The status of 0xFFE0 through 0xFFFF and that of the security program are output. The external controller
This command is used to prohibit the reading or writing of data in flash memory in parallel mode. In serial
This command is nonfunctional in the TMP89FM82T. It becomes functional if used for a product with flash memory of more than 96Kbytes.
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TMP89FM82T