86FS27-23

2007-08-07

TMP86FS27

except the start mark data (3AH for “:”) as Intel Hex Format data, even if external controller

transmitted dummy password strings, process operates correctly. However, if the dummy

password strings contain data “3AH”, the device detects it as start mark data mistakenly, and

device stops process without returning error doce. Therefore, if these process becomes

issue, the external controller should not transmit the dummy password strings.

Figure 2.11.1Password Comparison Example

08H

01H

02H

03H

04H

05H

08H

F012H

F107H

F108H

Flash memory

F109H

F10AH

F10BH

F10CH

UART

F0H 12H F1H 07H 01H 02H 03H 04H 05H 06H 07H

08H

PNSA

PCSA

Password string

06H

07H

F10DH

F10EH

"08H" is treated

as the number of

password.

8 bytes

Comparison

Example)

PNSA = F012H

PCSA = F107H

Password string = 01H,02H,03H,04H,05H,

06H,07H,08H

RXD pin