TSS463-AAR ATMEL [ATMEL Corporation], TSS463-AAR Datasheet - Page 33

• Manufacturer Part Number: TSS463-AAR
• Description: VAN Data Link Controller with Serial Interface
• Manufacturer: ATMEL [ATMEL Corporation]

Last Error Status Register (0x07)
BOC: Buffer Occupied
BOV: Buffer Overflow
FCSE: Framing Check
Sequence Error
ACKE: Acknowledge Error
4205B–AUTO–12/04
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One: BOC active
Zero: BOC inactive
BOV indicates that the buffer length setup in the Channel Status Register was shorter
than the number of bytes received plus 1, and thus, some data was lost.
One: BOV active
Zero: BOV inactive
FCSE indicates a mismatch between the FCS received and the FCS calculated
One: FCSE active
Zero: FCSE inactive
ACKE indicates a physical violation or collision on ACK field of the frame when the
TSS463AA is a producer.
One: ACKE active
Zero: ACKE inactive
Read only register.
Default value after reset: 0 00.
The Last Error Status Register contains the error code for the last transmission or
reception attempt. It is updated after each attempt, i.e., several error codes can be
reported during one single transmission (with several retries).
when one channel configured in “Reply request” mode has its “received” bit set
when it attempts to transmit its request.
BOC with the link capability between two channels sharing the same received
buffer, is set when one channel has already set its “received” bit in its “Message
length and status Channel register” and a receive is attempt on the other one.
7
X
BOC
6
BOV
5
4
X
FCSE
3
ACKE
2
TSS463-AA
CV
1
FV
0
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