參數(shù)資料
型號(hào): TSS463C
廠商: Atmel Corp.
英文描述: VAN Data Link Controller with Serial Interface
中文描述: 凡數(shù)據(jù)與串行接口鏈路控制器
文件頁(yè)數(shù): 31/59頁(yè)
文件大?。?/td> 492K
代理商: TSS463C
31
TSS463C
7601B–AUTO–02/06
REAR: Re-Arbitrate command.
This command will, after the current attempt, reset the retry counter and re-arbitrate the
messages to be transmitted in order to find the highest priority message to transmit.
One:
Re-arbitrate active
Zero:
Re-arbitrate inactive
MSDC: Manual System
Diagnosis Clock.
Rather than using the SDC divider described in Section “SDC Signal (Synchronous
Diagnosis Clock)” , the user can use the manual SDC command to generate a SDC
pulse for the diagnosis system.
This MSDC pulse should be high at least 2 timeslot clocks.
Line Status Register (0x04)
Read only register
Default value after reset: 0bx01xxx00.
This register reports the operation mode of the TSS463C in the Sleep an Idle bits
(Command Register located at address 0
×
03) as well as the diagnosis system
status bits Sa to Sc discussed in the section “Diagnosis System” on page 22
SPG: Sleeping
IDG: Idling
Default mode at reset.
Sa, Sb and Sc: Diagnosis
System Status Bits
Table 8.
Diagnosis System Status Bits
Sa and Sb
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 bit is through the RI signal or a general reset.
TXG: Transmitting
If this status bit is active, it indicates that the TSS463C has chosen an identifier to trans-
mit, and it will continue to make transmission attempt for this message until it succeeds
or the retry count is exceeded.
RXG: Receiving
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).
7
6
5
4
3
2
1
0
X
SPG
IDG
Sc
Sb
Sa
TXG
RXG
Sb
Sa
Communication Indication
0
0
Nominal mode, differential communication
0
1
Degraded over DATA, fault on DATA
1
0
Degraded over DATA, fault on DATA
1
1
Major error, fault on DATA and DATA
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