参数资料
型号: TSS463A-TERZ
厂商: Atmel Corp.
英文描述: VAN Data Link Controller with Serial Interface
中文描述: 凡数据与串行接口链路控制器
文件页数: 29/60页
文件大小: 816K
代理商: TSS463A-TERZ
29
TSS463-AA
4205B–AUTO–12/04
Diagnosis Control Register (0x02)
Read/Write register
Default value after reset: 0
×
00.
The diagnosis is discussed in greater detail in the section “Diagnosis System” on page
22.
In its four high order bits, the user can program the SDC rate SDC [3:0]
In its two medium order bits, the diagnosis system mode is controlled: M1, M0.
In the two low order bits, the user controls if the SDC and TIP are to be generated
automatically ETIP, ESDC.
SDC [3:0]: SDC divider
The input clock is the timeslot clock.
Table 6.
System Diagnosis Clock Divider
7
6
5
4
3
2
1
0
SDC3
SDC2
SDC1
SDC0
Ma
Mb
ETIP
ESDC
SDC DIVIDER SDC [3:0]
Divide by
0000
64
0001
128
0010
256
0011
512
0100
1024
0101
2048
0110
4096
0111
8192
1000
16384
1001
32768
1010
65536
1011
131072
1100
262144
1101
524288
1110
1048576
1111
2097152
SDC calculation
: (see “SDC Signal (Synchronous Diagnosis Clock)” on page 24).
Notes:
1. For each module, determine the largest interframe spacing,
LIFS
(*).
2. For the whole network, get the maximum LIFS,
MAX-LIFS
.
3. SDC period >
MAX-LIFS.
(*) IFS min. = 4 TS
Example: For VAN frame speed rate = 62,5 KTS/s (1 TS = 16 μs), SDC >100 ms
=> 100 ms / 16 μs = 6250, divider chosen: 8192, SDC [3:0] = 0111.
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