NEC UPD98413 User Manual page 218

(49) SD detection N parameter register (SDND)
This register sets the parameters of SD detection.
Register
Name
Port0:
SDND 00F4 H
31 30 29 28
Reserved
15 14 13 12
Bit Field
D31- Reserved Set to 0.
D24
ND[23:0]
D23-D0 Sets parameter "ND" for SD detection.
ND defines the length of one frame to be monitored as SD detection condition.
(50) SD detection L and M parameters register (SDLMD)
This register sets the parameters of SD detection.
Register
Name
Port0:
SDLMD 00F8 H
31 30 29 28
15 14 13 12
LD[7:0]
Bit Field
D31- Reserved Set to 0.
D20
D19-D8 LD[11:0] Sets parameter "LD" for SD detection.
LD defines the threshold of the number of errors that are detected in the ND frame
as SD detection condition.
MD[7:0]
D7-D0 Sets parameter "MD" for SD detection.
MD defines the number of consecutive events as SD detection condition, in each of
which LD or more errors are detected in one frame to be monitored (successive ND
frames).
218
CHAPTER 5 REGISTERS
Address
Port1: Port2: Port3:
04F4 H 08F4 H 0CF4 H
27 26 25 24
11 10 9 8
ND[15:0]
Address
Port1: Port2: Port3:
04F8 H 08F8 H 0CF8 H
27 26 25 24
Reserved
11 10 9 8
PRELIMINARY
Access Default
R/W 00000000 H
23 22 21 20
ND[23:16]
7 6 5 4
Function
Access Default
R/W 00000000 H
23 22 21 20
7 6 5 4
MD[7:0]
Function
19 18 17 16
3 2 1 0
Default
0
0
19 18 17 16
LD[11:8]
3 2 1 0
Default
0
0
0
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