TMP89FS60 datasheet(360/410 Pages) TOSHIBA

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Page 346

22. Serial PROM Mode

22.8 Operation Commands

TMP89FS60

RA002

22.8.5 Flash memory SUM output command (operation command: 0x90)

Table 22-11 shows the transfer formats of the flash memory SUM output command.

Note 1: "0x**

× 3" means that the device goes into an idle state after transmitting 3 bytes of 0x**. For further information, refer to

Table 22-18.

Note 2: For information on checksums, refer to "22.10 Checksum (SUM)".

Note 3: If data to be included in the checksum are all 0xFF, the 7th byte becomes 0xAA. If any one piece of data to be included in

the checksum is other than 0xFF, the 7th byte becomes 0x55.

Table 22-11 Transfer Formats of the Flash Memory SUM Output 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 (0x90)

Baud rate after adjustment

OK: No data transmitted (0x90)

Error: 0xA1

× 3, 0xA3 × 3, 0x63 × 3 (note 1)

7th byte

Baud rate after adjustment

0x55 : -

0xAA: All data are 0xFF.

8th byte

Baud rate after adjustment

OK: Checksum (high) (note 2)

Error: No data transmitted

9th byte

Baud rate after adjustment

OK: Checksum (low) (note 2)

Error: No data transmitted

10th byte

(Wait for the next operation command data)

Baud rate after adjustment

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