TMP89FS60 datasheet(370/410 Pages) TOSHIBA

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Page 356

22. Serial PROM Mode

22.11 Intel Hex Format (Binary)

TMP89FS60

RA002

22.11Intel Hex Format (Binary)

For the following two commands, the Intel Hex format is used in part of the transfer format:

- Flash memory write command (0x30)

- RAM loader command (0x60)

For information on the definition of the Intel Hex format, refer to Table 22-20.

Data is in binary form. The start mark ":" must be transmitted as binary data of 0x3A.

1. After receiving the checksum of each data record, the TMP89FS60 goes into a wait state and awaits the

arrival of the start mark (0x3A ":") of the next data record. Although the external controller transmits data

other than 0x3A between records, the TMP89FS60 ignores such data when it is in this wait state.

2. The external controller must be provisioned so that after it transmits the checksum of end record, it goes

into a wait state and does not transmit any data until the arrival of 3-byte data (overwrite detection, upper

and lower bytes of the checksum). (3-byte data is used if the flash memory write command is used. If the

RAM loader command is used, the external controller awaits the arrival of 2-byte data, or upper and lower

bytes of the checksum.)

3. If a receiving error or Intel Hex format error occurs, the TMP89FS60 goes into an idle state without return-

ing an error code to the external controller. The Intel Hex format error occurs in the following cases:

- If the record type is other than 00h, 01h, or 02h

- If a checksum error of the Intel Hex format occurs

- If the data length of an extended record (record type = 0x02) is not 0x02

- If the TMP89FS60 receives the data record after receiving an extended record (record type = 0x02)

whose segment address is more than 0x2000

- I the data length of the end record (record type = 0x01) is not 0x00

- If the offset address of an extended record (record type = 0x02) is not 0x0000

Table 22-20 Definition of the Intel Hex Format

(1)

(2)

(3)

(4)

(5)

(6)

Start

mark

Data length

(1 byte)

Offset address

(2 bytes)

Record type

(1 byte)

Data

Checksum

(1 byte)

Data record

(record type = 00)

Number of data

in a data field

Starting byte stor-

age address

* Specified using

big-endian

Data

(1 to 255 bytes)

(2) Data length

(3) Offset address

(4) Record type

(5) Data

Complement of 2 of the

sum total of the above

End record

(record type = 01)

00 00

None

(2) Data length

(3) Offset address

(4) Record type

Complement of 2 of the

sum total of the above

Extended record

(record type = 02)

00 00

Segment address

(2 bytes)

* Specified using

big-endian

(2) Data length

(3) Offset address

(4) Record type

(5) Segment address

Complement of 2 of the

sum total of the above

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