Datasheet

888
32142D–06/2013
ATUC64/128/256L3/4U
34.6.7.2 JTAG_ID
This command instructs the AW to output the JTAG idcode in the following response.
34.6.7.3 STATUS_REQUEST
Asks the AW for a status message.
34.6.7.4 TUNE
Asks the AW for the current baud rate counter value.
34.6.7.5 MEMORY_SPEED_REQUEST
Asks the AW for the relative speed between the aWire clock (RC120M) and the SAB interface.
34.6.7.6 CHIP_ERASE
This instruction allows a programmer to completely erase all nonvolatile memories in the chip.
This will also clear any security bits that are set, so the device can be accessed normally. The
command is acked immediately, but the status of the command can be monitored by checking
Table 34-34. JTAG_ID Details
Command Details
Command value 0x02
Additional data N/A
Possible responses
0xC0: IDCODE (Section 34.6.8.3)
0x41: NACK (Section 34.6.8.2)
Table 34-35. STATUS_REQUEST Details
Command Details
Command value 0x03
Additional data N/A
Possible responses
0xC4: STATUS_INFO (Section 34.6.8.7)
0x41: NACK (Section 34.6.8.2)
Table 34-36. TUNE Details
Command Details
Command value 0x04
Additional data N/A
Possible responses
0xC3: BAUD_RATE (Section 34.6.8.6)
0x41: NACK (Section 34.6.8.2)
Table 34-37. MEMORY_SPEED_REQUEST Details
Command Details
Command value 0x05
Additional data N/A
Possible responses
0xC5: MEMORY_SPEED (Section 34.6.8.8)
0x41: NACK (Section 34.6.8.2)