参数资料
型号: PM4314-RI
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: PLASTIC, QFP-128
文件页数: 106/170页
文件大小: 823K
代理商: PM4314-RI
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
94
Registers 025H, 065H, 0A5H and 0E5H: XIBC Loopback Code
Bit
Type
Function
Default
Bit 7
R/W
IBC7
X
Bit 6
R/W
IBC6
X
Bit 5
R/W
IBC5
X
Bit 4
R/W
IBC4
X
Bit 3
R/W
IBC3
X
Bit 2
R/W
IBC2
X
Bit 1
R/W
IBC1
X
Bit 0
R/W
IBC0
X
These registers contain the inband loopback code pattern to be transmitted. The
code is transmitted most significant bit ( IBC7) first, followed by IBC6 and so on.
The code, regardless of the length, must be aligned with the MSB always in the
IBC7 position (a 5-bit code would occupy the IBC7 through IBC2 bit positions).
To transmit a 3-bit or a 4-bit code pattern, the pattern must be paired to form a
double-sized code (the 3-bit code '011' would be written as the 6-bit code
'011011').
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