TMP92FD54AI datasheet(43/84 Pages) TOSHIBA

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2006-01-27

92FD54AI-43

TMP92FD54AI

3) Product Information Read command (See Table 4.3.5.)

1. The transmitted/received data in the first and second bytes are the same as

for the RAM Transfer command.

2. The data received in the third byte is the operation command data. In this

case it is product information read command data (30H).

3. The data in the fourth byte is the ACK response data returned by the device for

the operation command data in the third byte. The first, the device checks if

the received data in the third byte contains an error. If a Receive error is found,

the device returns ACK response data for a Communication error (bit 3) X8H

and waits for the next operation command (third byte). The four high-order bits

of the returned ACK response data are undefined. (They are the four

high-order bits of the immediately preceding operation command data.)

Next, if the data received in the third byte corresponds to one of the operation

command values given in Table 4.3.2, the device echoes back the received data

(the ACK response data for normal reception). In this case the data value 30H

is echoed back, and the program branches to the product information read

processing routine. If the received data does not correspond to any operation

command data, the device returns the ACK response data for an Operation

Command error (bit 0) X1H and waits for the next operation command (third

byte). The four high-order bits of the returned ACK response data are

undefined. (They are the four high-order bits of the immediately preceding

operation command data.)

4. The data in bytes 5 to 8 sent by the device is flash memory data (the data at

addresses 08FEF0H to 08FEF3H). These addresses can be used to write ID

information for the software, facilitating version management.

5. The data in bytes 9 to 20 sent by the device denotes the product name. This

data is “TMP92FD54AI” and is transmitted as a sequence of ASCII codes

starting from the ninth byte.

6. The data in bytes 21 to 24 sent by the device is the password comparison start

address. This data consists of the values F4H, FEH, 08H and 00H and is

transmitted starting from the 21st byte.

7. The data in bytes 25 to 28 sent by the device is the RAM start address. This

data consists of the values 00H, 04H, 00H and 00H and is transmitted

starting from the 25th byte.

8. The data in bytes 29 to 32 sent by the device is the RAM user area end address.

This data consists of the values 006BFFH and is transmitted starting from

the 29th byte.

9. The data in bytes 33 to 36 sent by the device is the RAM end address. This

data consists of the values FFH, 83H, 00H and 00H and is transmitted

starting from the 33rd byte.

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