PM7384 FREEDM-84P672
DATA SHEET
PMC-1990445
ISSUE 5
FRAME ENGINE AND DATA LINK MANAGER 84P672
where multiple streams have accumulated a byte of data, multiplexing is
performed on a fixed priority basis with link #0 having the highest priority and link
#83 the lowest.
The 84 RCAS links have a fixed relationship to the SPE and tributary numbers
on the SBI DROP BUS as shown in the following table.
Table 7 – SBI SPE/Tributary to RCAS Link Mapping
SBI
SBI
RCAS
Link
No.
SBI
SBI
RCAS
Link
No.
SBI
SBI
RCAS
Link
No.
SPE Trib.
SPE Trib.
SPE Trib.
No.
No.
No.
No.
No.
No.
1
1
0
2
1
1
3
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
3
6
9
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
4
7
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
5
8
10
13
16
19
22
25
28
31
34
37
40
43
46
49
52
55
58
61
64
11
14
17
20
23
26
29
32
35
38
41
44
47
50
53
56
59
62
65
12
15
18
21
24
27
30
33
36
39
42
45
48
51
54
57
60
63
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
36
PMC [ PMC-SIERRA, INC ]
