TMP89FS60 datasheet(355/410 Pages) TOSHIBA

355 / 410 page

Page 341

TMP89FS60

RA002

Therefore, if a password error occurs, initialize the TMP89FS60 by using the RESET pin, and restart the serial PROM

mode.

Note 4: If the security program is enabled in flash memory or if a password error occurs, the TMP89FS60 stops communication,

and goes into an idle state. Therefore, if a password error occurs, initialize the TMP89FS60 by using the RESET pin, and

restart the serial PROM mode.

Note 5: If a communication error occurs during the transfer of a password address or a password string, the TMP89FS60 stops

communication and goes into an idle state. Therefore, when a password error occurs, initialize the TMP89FS60 by using

the RESET pin, and restart the serial PROM mode.

Note 6: If all data in flash memory are the same data, make sure that you never write data to the address 0xFFE0 through

0xFFFF. If data is written to this address, a password error occurs, and the subsequent operations cannot be performed.

Note 7: The n-th-2 byte is a flag for detecting an overwrite. If memory contents at an address where data is to be written are other

than 0xFF, the n-th-2 byte is 0xAA (data is not written to this address, and the data write routine is skipped). The check-

sum at the n-th-1 byte or n-th byte is calculated based on data in which data in memory areas where data was not written

are included. Therefore, if an overwrite is detected, the checksum of transmitted data does not match that at the n-th-1

byte or n-th byte.

TMP89FS60 Datasheet(PDF) 355 Page - Toshiba Semiconductor