AT32UC3L064-D3HES ATMEL [ATMEL Corporation], AT32UC3L064-D3HES Datasheet - Page 772

• Manufacturer Part Number: AT32UC3L064-D3HES
• Manufacturer: ATMEL [ATMEL Corporation]

31.6.8
Table 31-49. aWire Response Summary
31.6.8.1
31.6.8.2
31.6.8.3
31.6.8.4
32099D–06/2010
RESPONSE
0xC0
0xC1
0xC2
0xC3
0xC4
0xC5
0x40
0x41
aWire Response Summary
ACK
NACK
IDCODE
MEMDATA
IDCODE
MEMDATA
BAUD_RATE
STATUS_INFO
Instruction
ACK
NACK
MEMORY_READWRITE_STATUS
MEMORY_SPEED
The implemented aWire responses are shown in the table below.
The AW has received the command successfully and performed the operation.
Table 31-50. ACK Details
The AW has received the command, but got a CRC mismatch.
Table 31-51. NACK Details
The JTAG idcode for this device.
Table 31-52. IDCODE Details
The data read from the address specified by the MEMORY_READ command. The last 3 bytes
are status bytes from the read. The first status byte is the status of the command described in
the table below. The last 2 bytes are the number of remaining data bytes to be sent in the data
field of the packet when the error occurred. If the read was not successful all data bytes after the
failure are undefined. A successful word read (4 bytes) will look like this:
Response
Response value
Additional data
Response
Response value
Additional data
Response
Response value
Additional data
Description
Acknowledge.
Not acknowledge. Sent after CRC errors and after unknown commands.
The JTAG idcode.
Values read from memory.
Status after a MEMORY_WRITE or a MEMORY_READ command. OK, busy,
error.
The current baudrate.
Status information.
SAB to aWire speed information.
Details
0x40
N/A
Details
0x41
N/A
Details
0xC0
JTAG idcode
AT32UC3L016/32/64
772