参数资料
型号: PM4314
厂商: PMC-SIERRA INC
元件分类: 数字传输电路
英文描述: QUAD T1/E1 LINE INTERFACE DEVICE
中文描述: DATACOM, PCM TRANSCEIVER, PQFP128
封装: 14 X 20 MM, PLASTIC, QFP-128
文件页数: 142/170页
文件大小: 823K
代理商: PM4314
PM4314 QDSX
DATA SHEET
PMC-950857
ISSUE 5
QUAD T1/E1 LINE INTERFACE DEVICE
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
130
Figure 22
- Input Observation Cell (IN_CELL)
Input
Pad
D
C
CLOCK-DR
Scan Chain Out
INPUT
to internal
logic
SHIFT-DR
Scan Chain In
1 2
1 2
1 2
1 2
MUX
I.D. Code bit
IDCODE
G1
G2
In this diagram and those that follow, CLOCK-DR is equal to TCK when the
current controller state is SHIFT-DR or CAPTURE-DR, and unchanging
otherwise. The multiplexer in the centre of the diagram selects one of four inputs,
depending on the status of select lines G1 and G2. The ID Code bit is as listed in
the table above.
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