AT32UC3C1512C Automotive Atmel Corporation, AT32UC3C1512C Automotive Datasheet - Page 1242

• Manufacturer Part Number: AT32UC3C1512C Automotive
• Manufacturer: Atmel Corporation

39.6.8.5
9166C–AVR-08/11
MEMORY_READWRITE_STATUS
The error occurred after reading 2 bytes on the SAB. The rest of the bytes read are undefined.
The status byte indicates the error and the bytes remaining indicates how many bytes were
remaining to be sent of the data field of the packet when the error occurred.
Table 39-51. MEMDATA Status Byte
Table 39-52. MEMDATA Details
After a MEMORY_WRITE command this response is sent by AW. The response can also be
sent after a MEMORY_READ command if AW encountered an error when receiving the
address. The response contains 3 bytes, where the first is the status of the command and the 2
next contains the byte count when the first error occurred. The first byte is encoded this way:
Table 39-53. MEMORY_READWRITE_STATUS Status Byte
status byte
0x00
0x01
0x02
Other
Response
Response value
Additional data
status byte
0x00
0x01
0x02
Other
1. 0x55 (sync)
2. 0xC1 (command)
3. 0x00 (length MSB)
4. 0x07 (length LSB)
5. 0xCA (Data MSB)
6. 0xFE
7. 0xXX (An error has occurred. Data read is undefined. 5 bytes remaining of the Data
8. 0xXX (More undefined data)
9. 0x02 (Status byte)
10. 0x00 (Bytes remaining MSB)
11. 0x05 (Bytes remaining LSB)
12. 0xXX (CRC MSB)
13. 0xXX (CRC LSB)
field)
Description
Read successful
SAB busy
Bus error (wrong address)
Reserved
Details
0xC1
Data read, status byte, and byte count (2 bytes)
Description
Write successful
SAB busy
Bus error (wrong address)
Reserved
AT32UC3C
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