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: 145/170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
133
13
FUNCTIONAL TIMING
13.1 Line Code Violation Insertion
Figure 26
- B8ZS Line Code Violation Insertion
CLK
UNIDAT
TXTIP
TXRING
continuous zeros
0
0
0
0
V
V
B
B
B8ZS Signature Pattern
B
B
V
V
0 0 0
0
LCVINS = 1 causes
omission of first bipolar
violation pulse.
B
B
0
V
0 0 0
0
CLK
UNIDAT
TXTIP
TXRING
continuous zeros
0
0
0
0
V
V
B
B
B8ZS Signature Pattern
The effect of setting the LCVINS bit of the Diagnostics register (005H, 045H,
085H, and 0C5H) is shown in the above diagrams. The signals CLK and UNIDAT
are not actual signals but are used as reference guidelines and TXTIP[X] and
TXRING[X] have been shown as square NRZ pulses for illustrative purposes.
CLK shows the reference 1x clock used to generate the TXTIP[X] and
TXRING[X] outputs. UNIDAT is the unipolar data stream that is B8ZS encoded to
generate the TXTIP[X] and TXRING[X] bipolar output streams. Setting LCVINS
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