TMP92FD54AI datasheet(46/84 Pages) TOSHIBA

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2006-01-27

92FD54AI-46

TMP92FD54AI

5) ACK response data

The boot program notifies the controller of the processing status by sending various

codes. Table 4.3.8 to Table 4.3.101 show the ACK response data returned by the device

for each item of received data. The four high-order bits of the ACK response data are a

direct reflection of the four high-order bits of the operation command data. Bit 3

indicates a Receive error, and bit 0 indicates an Operation Command error,

CHECKSUM error or Password Error. Bits 1 and 2 are always 0.

Table 4.3.8 ACK response data to data for determining the serial operation mode

Returned Data

Meaning of Data Returned by the Device

86H

It is found that device can communicate in UART Mode.

Table 4.3.9 ACK response data to operation command data

Returned Data

Meaning of Data Returned by the Device

x8H *1

A Receive error occurred in the operation command data.

x1H *1

Undefined operation command data was received normally.

10H

Data was found to be a RAM Transfer command.

20H

Data was found to be a Flash Memory SUM command.

30H

Data was found to be a Product Information Read command.

40H

Data was found to be an Auto Chip Erase & UnProtect command.

*1: The four high-order bits are a direct reflection of the four high-order bits of the

immediately preceding operation command data.

Table 4.3.10 ACK response data to CHECKSUM data

Returned Data

Meaning of Data Returned by the Device

18H

An error had occurred in the received data.

11H

A CHECKSUM error or password error occurred.

10H

The CHECKSUM was found to be the correct value.

Table 4.3.11 ACK response data to Auto Chip Erase & UnProtect data

Returned Data

Meaning of Data Returned by the Device

4FH

The erase operation has terminated normally

4CH

The erase error occurred.

B1H

Reconfirmation of erase operation

B4H

Reconfirmation of erase error operation

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