TMP89FS60 datasheet(367/410 Pages) TOSHIBA

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Page 353

TMP89FS60

RA002

22.8.9 Flash memory security setting command (0xFA)

Table 22-17 shows the flash memory security setting command.

Note 1: "xxH

× 3" means that the device goes into an idle state after transmitting 3 bytes of xxH.

Note 2: For information on passwords, refer to "22.12.1 Passwords".

Note 3: If the flash memory security setting command is executed for a blank product or if a password error occurs for a non-blank

product, the TMP89FS60 stops communication and goes into an idle state. Therefore, if a password error occurs, initialize

the TMP89FS60 by using the RESET pin, and restart the serial PROM mode.

Note 4: If a communication error occurs during the transfer of a password address or password string, the TMP89FS60 stops

communication and goes into an idle state. Therefore, if a password error occurs, initialize the TMP89FS60 by using the

RESET

pin, and restart the serial PROM mode.

Note 5: If the flash memory security is not enabled, it becomes possible to read ROM data freely in parallel PROM mode. Make

sure that you enable the flash memory security in mass production.

Table 22-17 Flash Memory Security Setting Command

Transfer byte

Transfer data from the external controller to

TMP89FS60

Baud rate

Transfer data from TMP89FS60 to the

external controller

BOOT

ROM

1st byte

2nd byte

Matching data 1 (0x86 or 0x30)

Automatic adjustment

Baud rate after adjustment

- (Automatic baud rate adjustment)

OK: Echo back data (0x86 or 0x30)

Error: No data transmitted

3rd byte

4th byte

Matching data 2 (0x79 or 0xCF)

Baud rate after adjustment

OK: Echo back data (0x79 or 0xCF)

Error: No data transmitted

5th byte

6th byte

Operation command data (0xFA)

Baud rate after adjustment

OK: Echo back data (0xFA)

Error: 0xA1

× 3, 0xA3 × 3, 0x63 × 3 (note 1)

7th byte

8th byte

Password count storage address 23 to 16

Baud rate after adjustment

OK: No data transmitted

Error: No data transmitted

9th byte

10th byte

Password count storage address 15 to 08

Baud rate after adjustment

OK: No data transmitted

Error: No data transmitted

11th byte

12th byte

Password count storage address 07 to 00

Baud rate after adjustment

OK: No data transmitted

Error: No data transmitted

13th byte

14th byte

Password comparison start address 23 to 16

Baud rate after adjustment

OK: No data transmitted

Error: No data transmitted

15th byte

16th byte

Password comparison start address 15 to 08

Baud rate after adjustment

OK: No data transmitted

Error: No data transmitted

17th byte

18th byte

Password comparison start address 07 to 00

Baud rate after adjustment

OK: No data transmitted

Error: No data transmitted

19th byte

m-th byte

Password string

Baud rate after adjustment

OK: No data transmitted

Error: No data transmitted

n-th byte

Baud rate after adjustment

OK: 0xFB (note 3)

Error: No data transmitted

n-th + 1 byte

(Wait for the next command data)

Baud rate after adjustment

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