参数资料
型号: DS3254DK
厂商: Maxim Integrated Products
文件页数: 6/71页
文件大小: 0K
描述: KIT DEMO FOR DS3254
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
设计资源: DS3254DK Gerber Files
标准包装: 1
主要目的: 电信,线路接口单元(LIU)
已用 IC / 零件: DS3254
已供物品: 板,CD
DS3251/DS3252/DS3253/DS3254
14 of 71
Table 6-G. Transmitter Data Select Options
TDSA
TDSB
E3M
STS
Tx
MODE
TRANSMIT DATA SELECTED
0
X
Any
Normal data as input at TPOS and TNEG
0
1
0
DS3
0
1
0
E3
0
1
STS-1
Unframed all ones
0
1
0
1
DS3
DS3 AIS per ANSI T1.107 (Figure 9-2)
1
0
X
Any
Unframed 100100… pattern
1
0
E3
2
23 - 1 PRBS pattern per ITU O.151
1
0
X
DS3
1
STS-1
2
15 - 1 PRBS pattern per ITU O.151
Note 1:
This coding of the TDSA, TDSB, E3M, and STS bits allows AIS generation to be enabled by
holding TDSA = 0 and changing TDSB from 0 to 1. The type of DS3 AIS signal is selected by the
STS bit with E3M = 0.
Note 2:
If E3M and/or STS are changed when {TDSA,TDSB}
≠ 00, TDSA and TDSB must both be cleared
to 0. After they are cleared, TDSA and TDSB can be configured to transmit a pattern in the new
operating mode.
Table 6-H. Receiver PRBS Pattern Select Options
E3M
STS
Rx
MODE
RECEIVER PRBS PATTERN
SELECTED
1
0
E3
2
23 - 1 PRBS pattern per ITU O.151
0
X
DS3
1
STS-1
2
15 - 1 PRBS pattern per ITU O.151
Table 6-I. Hardware Mode Jitter Attenuator Configuration
TJA
RJA
JITTER ATTENUATOR CONFIGURATION
0
Disabled
0
1
Receive path, 16-bit buffer depth
1
0
Transmit path, 16-bit buffer depth
1
Transmit path, 32-bit buffer depth
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