TMP86FS49AIUG datasheet(267/296 Pages) TOSHIBA

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Page 251

TMP86FS49AIUG

20.6.6 Flash Memory Status Output Mode (Operation Command: C3H)

Table 20-12 shows Flash memory status output mode process.

Note 1: “xxH

× 3” indicates that the device enters the halt condition after sending 3 bytes of xxH. For details, refer to " 20.7 Error

Code ".

Note 2: For the details on status code 1, refer to " 20.12 Flash Memory Status Code ".

Description of Flash memory status output mode

1. The 1st through 4th bytes of the transmitted and received data contain the same data as in the Flash

memory writing mode.

2. The 5th byte of the received data contains the flash memory status output mode command data

(C3H).

3. When the 5th byte contains the operation command data shown in Table 20-6, the device echoes back

the value which is the same data in the 6th byte position of the received data (in this case, C3H). If the

5th byte does not contain the operation command data, the device enters the halt condition after send-

ing 3 bytes of operation command error code (63H).

4. The 9th through 13th bytes contain the status code. For details on the status code, refer to " 20.12

Flash Memory Status Code ".

5. After sending the status code, the device waits for the next operation command data.

Table 20-12 Flash Memory Status Output Mode Process

Transfer Bytes

Transfer Data from External Con-

troller to TMP86FS49AIUG

Baud Rate

Transfer Data from TMP86FS49AIUG to

External Controller

BOOT

ROM

1st byte

2nd byte

Matching data (5AH)

9600 bps

- (Automatic baud rate adjustment)

OK: Echo back data (5AH)

Error: Nothing transmitted

3rd byte

4th byte

Baud rate modification data

(See Table 20-4)

9600 bps

OK: Echo back data

Error: A1H

× 3, A3H × 3, 62H × 3 (Note 1)

5th byte

6th byte

Operation command data (C3H)

Modified baud rate

OK: Echo back data (C3H)

Error: A1H

× 3, A3H × 3, 63H × 3 (Note 1)

7th byte

Modified baud rate

3AH

Start mark

8th byte

Modified baud rate

04H

Byte count

(from 9th to 12th byte)

9th byte

Modified baud rate

00H

03H

Status code 1

10th byte

Modified baud rate

00H

Reserved data

11th byte

Modified baud rate

00H

Reserved data

12th byte

Modified baud rate

00H

Reserved data

13th byte

Modified baud rate

Checksum 2’s complement for the sum of 9th

through 12th bytes

9th byte

Checksum

00H:

00H

01H:

FFH

02H:

FEH

03H:

FDH

14th byte

(Wait for the next operation com-

mand data)

Modified baud rate

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