TSS463-AAR ATMEL [ATMEL Corporation], TSS463-AAR Datasheet - Page 32

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

TXG: Transmitting
RXG: Receiving
Transmission Status Register
(0x05)
NRT [3:0]:
IDT [3:0]:
Last Message Status Register
(0x06)
NRTR [3:0]:
IDTR [3:0]:
32
TSS463-AA
•
If this status bit is active, it indicates that the TSS463AA has chosen an identifier to
transmit, and it will continue to make transmission attempt for this message until it suc-
ceeds or the retry count is exceeded.
The receiving indicates that there is activity on the bus.
Note: For safe modification of active channel registers both bits should be inactive
(except “abort” command).
•
•
•
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.
NRTR3
NRT3
Sc: As soon as one of the three inputs (RxD2, RxD1, RxD0) differs from the others
in the input comparison analysis performed by the diagnosis system, Sc is set.
The only ways to reset this status bits through the RI signal or a general reset.
Read only register.
Default value after reset: 0x00.
The transmission Status register contains the number of retries made up-to-date,
according tothe table above, 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.
7
7
NRTR2
NRT2
6
6
NRTR1
NRT1
5
5
NRTR0
NRT0
4
4
IDTR3
IDT3
3
3
IDTR2
IDT2
2
2
IDTR1
IDT1
1
1
4205B–AUTO–12/04
IDTR0
IDT0
0
0