86FS27-13

2007-08-07

TMP86FS27

2.6.1

Flash Memory Writing Mode (Operation command: 30H)

Table 2.6.1 shows flash memory writing mode process.

Table 2.6.1 Flash Memory Writing Mode Process

Note 1: “xxH

× 3” denotes that operation stops after sending 3 bytes of xxH. For details, refer to 2.8

“Error Code”.

Note 2: Refer to 2.10 “Intel Hex Format (Binary)”.

Note 3: Refer to 2.9 “Checksum (SUM)”.

Note 4: Refer to 2.11 “Passwords”.

Note 5: If all data of vector area are “00H” or “FFH”, the passwords comparison is not executed

because the device is considered as blank product. However, it is necessary to specify the

password count storage addresses and the password comparison start address even though

it is a blank product. If a password error occurs, the UART function of TMP86FS27 stops

without returning error code to the controller. Therefore, when a password error occurs, the

Note 6: The time between data records needs over 1 ms.

Number of

Bytes

Transferred

Transfer Data from

External Controller to

TMP86FS27

Baud Rate

Transfer Data from

TMP86FS2786FS27 to

External Controller

BOOT

ROM

1st byte

2nd byte

Matching data (5AH)

−

9600 bps

9600 bps

− (Baud rate auto set)

OK: Echo back data (5AH)

Error: Nothing transmitted

3rd byte

4th byte

Baud rate modification data

(See Table 2.4.1)

−

9600 bps

9600 bps

−

OK: Echo back data

Error: A1H

× 3, A3H × 3, 62H × 3

(Note 1)

5th byte

6th byte

Operation command data (30H)

−

Changed new baud rate

Changed new baud rate

−

OK: Echo back data (30H)

Error: A1H

× 3, A3H × 3, 63H × 3

(Note 1)

7th byte

8th byte

Address 15 to 08 in which to

store Password count (Note 4)

Changed new baud rate

Changed new baud rate

−

OK: Nothing transmitted

Error: Nothing transmitted

9th byte

10th byte

Address 07 to 00 in which to

store Password count (Note 4)

Changed new baud rate

Changed new baud rate

−

OK: Nothing transmitted

Error: Nothing transmitted

11th byte

12th byte

Address 15 to 08 in which to

start

Password

comparison

(Note 4)

Changed new baud rate

Changed new baud rate

−

OK: Nothing transmitted

Error: Nothing transmitted

13th byte

14th byte

Address 07 to 00 in which to

start

Password

comparison

(Note 4)

Changed new baud rate

Changed new baud rate

−

OK: Nothing transmitted

Error: Nothing transmitted

15th byte

:

m'th byte

Password string (Note 5)

−

Changed new baud rate

Changed new baud rate

−

OK: Nothing transmitted

Error: Nothing transmitted

m'th

+ 1 byte

:

n'th

− 2 byte

Extended Intel format (binary)

(Note 2, 6)

Changed new baud rate

−

n'th

− 1 byte

−

Changed new baud rate

OK: SUM (High) (Note 3)

Error: Nothing transmitted

n'th byte

−

Changed new baud rate

OK: SUM (Low) (Note 3)

Error: Nothing transmitted

n'th

+ 1 byte

(Wait for the next operation)

(Command data)

Changed new baud rate

−