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(10) Transmit SOH mode register (MDSOHT)
The MDSOHT register sets the modes related to transmit SOH operation.
Register
Name
Port0:
MDSOHT
0040H
31
30
29
28
15
14
13
12
Bit
Field
D31-
D6
Reserved
Set to 0.
FSCM
D5
Controls scramble of a frame.
D4
J0SZ
Selects the size of the transmit J0 section trace message.
B1M
D3
Selects even or odd parity for BIP-8 (B1) parity operation of transmit section.
D2
UUBM
Selects a value to be inserted in the unused byte area of the section overhead.
D1
Reserved
Set to 0.
D0
Z0M
Selects a value to be inserted in the 4th Z0 to 11th Z0 bytes of the transmit
overhead.
180
CHAPTER 5 REGISTERS
Address
Port1:
Port2:
Port3:
0440H
0840H
0C40H
27
26
25
24
Reserved
11
10
9
8
Reserved
1: Not scramble
0: Scramble
1: 16 bytes
0: 64 bytes
1: Odd parity
0: Even parity
1: Inserts FFH.
0: Inserts 00H.
1: Inserts AAH.
0: Sequentially inserts 5 to 36.
PRELIMINARY
Access
Default
R/W
00000000 H
23
22
21
20
7
6
5
4
FSCM
J0SZ
Function
19
18
17
16
3
2
1
0
B1M
UUBM
Res
Z0M
Default
0
0
0
0
0
0
0
NEC confidential and Proprietary
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