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: 70/170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
58
Register 001H, 041H, 081H, and 0C1H: Transmit Configuration
Bit
Type
Function
Default
Bit 7
Unused
X
Bit 6
Unused
X
Bit 5
Unused
X
Bit 4
R/W
TDPINV
0
Bit 3
R/W
TDNINV
0
Bit 2
R/W
TDUAL
0
Bit 1
R/W
TFALL
0
Bit 0
R/W
CEPT
0
These registers enable the Transmit Interface to generate the required digital
output waveform format.
TDPINV,TDNINV:
The TDPINV and TDNINV bits enable the Transmit Interface to logically invert
the input signals on the TDD/TDP[X] and TDN[X] inputs, respectively. When
TDPINV is set to logic 1, the TDD/TDP[X] input is inverted. When TDPINV is
set to logic 0, the TDD/TDP[X] input is not inverted. When TDNINV is set to
logic 1, the TDN[X] input is inverted. When TDNINV is set to logic 0, the
TDN[X] input is not inverted.
TDUAL:
TDUAL configures the TDD/TDP[X] and TDN[X] inputs to unipolar or bipolar
form. When the TDUAL bit is set to logic 1, the bipolar inputs TDP[X] and
TDN[X] are enabled. When the TDUAL bit is set to logic 0, the unipolar input
TDD[X] is enabled and TDN[X] is ignored. The TDUAL bit is logically "ORed"
with the TDUAL input pin. If either are set to logic 1, then the bipolar inputs
will be enabled.
TFALL:
The TFALL bit enables the Transmit Interface to sample the TDD/TDP[X] and
TDN[X] inputs on the falling TCLKI[X] edge. When TFALL is set to logic 1, the
interface is enabled to sample the inputs on the falling TCLKI[X] edge. When
TFALL is set to logic 0, the interface is enabled to sample the inputs on the
rising TCLKI[X] edge.
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