TSS463C ATMEL Corporation, TSS463C Datasheet - Page 32

• Manufacturer Part Number: TSS463C
• Description: Van Data Link Controller With Serial Interface
• Manufacturer: ATMEL Corporation

Transmission Status Register (0x05)
NRT [3:0]
IDT [3:0]
Last Message Status Register
(0x06)
NRTR [3:0]
IDTR [3:0]
Last Error Status Register
(0x07)
BOC: Buffer occupied
32
TSS463C
•
•
•
Number of retries done in transmission.
Channel number currently in transmission.
•
•
•
Number of retries done successfully in transmission. In case of reception NRTR[3:0] is
undefined.
Channel number that was successfully transmitted, received or exceeded its retry count.
•
•
•
•
•
One: BOC active
Zero: BOC inactive
NRTR3
NRT3
Read only register.
Default value after reset: 0x00.
The transmission Status register contains the number of retries made up-to-date,
according to the Table 5., and the channel currently in transmission.
Read only register.
Default value after reset: 0x00.
This register is basically the same as the transmission status register. It contains the
last identifier number that was successfully transmitted, received or exceeded its
retry count.
If it was a successful transmission, the number of retries performed can be seen in
this register as well.
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
7
7
X
NRTR2
NRT2
BOC
6
6
6
NRTR1
NRT1
BOV
5
5
5
NRTR0
NRT0
4
4
4
X
IDTR3
FCSE
IDT3
3
3
3
IDTR2
ACKE
IDT2
2
2
2
IDTR1
IDT1
CV
1
1
1
7601B–AUTO–02/06
IDTR0
IDT0
FV
0
0
0