
PM5317 SPECTRA-9953 Telecom Standard Product Data Sheet
Release
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2000741, Issue 5
515
RTOH[1] bit-wise multiplexes the transport overhead bytes from slices [1,1] [1,2] [1,3] [1,4].
RTOH[2] bit-wise multiplexes the transport overhead bytes from slices [2,1] [2,2] [2,3] [2,4].
RTOH[3] bit-wise multiplexes the transport overhead bytes from slices [3,1] [3,2] [3,3] [3,4].
RTOH[4] bit-wise multiplexes the transport overhead bytes from slices [4,1] [1,2] [1,3] [4,4].
Figure 40 Receive Transport Overhead Description
RTOH[X]
ROHFP
ROHCLK
A1
#1
b1
A1
#1
b2
A1
#1
b3
A1
#1
b4
A1
#1
b5
A1
#1
b6
A1#1
b7
A1
#1
b8
A1
#2
b1
A1
#2
b2
A1
#2
b3
#1
#49
#97
#145
#13
#61
#109
#157
#25
#73
#121
#169
#37
#85
#133
#181
RTOH[1] (sts#)
RTOH[2] (sts#)
RTOH[3] (sts#)
RTOH[4] (sts#)
#1
#49
#97
#145
#13
#61
#109
#157
#25
#73
#121
#169
#37
#85
#133
#181
#12
#60
#108
#156
#24
#72
#120
#168
#36
#84
#132
#169
#48
#96
#144
#192
#1
#1
#1
#1
#13
#13
#13
#13
#25
#25
#25
#25
#37
#37
#37
#37
RTOH[1] (sts#)
RTOH[2] (sts#)
RTOH[3] (sts#)
RTOH[4] (sts#)
#12
#12
#12
#12
#24
#24
#24
#24
#36
#36
#36
#36
#48
#48
#48
#48
#1
#1
#1
#1
#13
#13
#13
#13
#25
#25
#25
#25
#37
#37
#37
#37
OC-192
mode
Quad OC-
48 mode
RTOH[X]
ROHCLK
ROHFP
A1
A2
J0/Z0
B1/--
E1/--
F1/--
D1/--
D2/--
D3/--
H1
H2
H3
S1/Z1
M0/M1
E2/--
RTOH[X]
ROHCLK
ROHFP
A1#1
A1#2
A1#3
A1#4
A1#5
A1#6
A1#7
A1#8
A1#9
A1#10
A1#11
A1#12
A2#1
RTOH[X]
ROHFP
A1
#2
b4
A1
#2
b5
A1
#2
b6
A1#2
b7
A1
#2
b8
A1
#3
b1
A1
#3
b2
A1
#3
b3
ROHCLK
A1#1
b1
A1#1
b1
A1#1
b1
A1#1
b1
A1#1
b2
A1#1
b2
A1#1
b2
A1#1
b2
A1#1
b3
A1
b8
A1
b8
A1
b8
A1
b8
A1#2
b1
A1#2
b1
A1#2
b1
A1#2
b1
A1#2
b8
A1#2
b8
A1#2
b8
A1#2
b8
#1
#49
#97
#145
#13
#61
#109
#157
#25
#73
#121
#169
#37
#85
#133
#181
#1
#1
#1
#1
#13
#13
#13
#13
#25
#25
#25
#25
#37
#37
#37
#37
#2
#50
#98
#146
#14
#62
#110
#158
#26
#74
#122
#170
#38
#86
#134
#182
#2
#2
#2
#2
#14
#14
#14
#14
#26
#26
#26
#26
#38
#38
#38
#38
18.6 Transmit Transport Overhead Port Timing (TTOH)
The function of the transmit transport overhead S/P block is to serially input from the TTOH
port all the transport overhead (TOH) bytes to be inserted in the current transmit frame. The
TOH bytes must be input from TTOH in the same order that they are transmitted (A1, A2,
J0/Z0, B1, E1, F1, D1-D3, H1-H3, B2, K1, K2, D4-D12, S1/Z1, M1/Z2 and E2). The
multiplexing structure is the same as the RTOH port (refer to Figure 40).