TABLE 2: UNI I/O C
參數(shù)資料
型號: XRT72L71IQ
廠商: Exar Corporation
文件頁數(shù): 50/102頁
文件大?。?/td> 0K
描述: IC FRAMER DS3 ATM UNI 160PQFP
產(chǎn)品變化通告: XRT72Lx Series Obsolescence 02/May/2012
標(biāo)準(zhǔn)包裝: 24
控制器類型: DS3 ATM UNI,透明通道調(diào)幀器
電源電壓: 3.3V
電流 - 電源: 120mA
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 160-BQFP
供應(yīng)商設(shè)備封裝: 160-PQFP(28x28)
包裝: 托盤
á
XRT72L71
DS3 ATM UNI/CLEAR CHANNEL FRAMER
REV. 1.1.0
47
TABLE 2: UNI I/O CONTROL REGISTER
REGISTER 1
UNI I/O CONTROL REGISTER
HEX ADDRESS:0X01
BIT
FUNCTION
TYPE
DEFAULT
DESCRIPTION-OPERATION
7
Disable LOC
R/W
1
0: Internal loss of clock detection circuit enabled
1: Internal loss of clock detection circuit disabled
6LOC
RO
0
0: Indicates no Loss of Clock
1: Indicates TxLnCLk or RxLineLck is not present. Bit is valid only if Disable LOC
is 0
5
INTERRUPT ENABLE
RESET
R/Q
1
0: Interrupt enable register bits are not reset by the chip when active interrupts
are read.
1: Reading of status of an active interrupt resets the corresponding interrupt
enable bit.
4
B3ZS*/AMI
R/W
0
0: B3ZS Encoding and Decoding is enabled.
1: B3ZS Encoding and Decoding are disabled.
NOTE: Dual-Rail data must be selected (via bit 3 of this register) if B3ZS
Encoding/Decoding are enabled.
3
SINGLE-RAIL/DUAL-
RAIL
R/W
0
0: Dual-Rail data is transmitted and received between the XRT72L71 and the LIU
IC.
1: Single-Rail data is transmitted and received between the XRT72L71 and the
LIU IC.
2
Tx Clock Invert
R/W
0
0: Outputs on TxPOS, TxNEG are updated on rising edge of TxClk
1: Ouputs on TxPOS, TxNEG are updated on falling edge of TxClk
1
Rx Clock Invert
R/W
0
0: Inputs on RxPOS, RxNEG are sampled at rising edge of RxClk
1: Inputs on RxPOS, RxNEG are sampled at falling edge of RxClk
0
REFRAME
R/W
0
0 to 1 transition forces the Receive DS3 Framer block to start frame search
TABLE 3: PART NUMBER REGISTER
REGISTER 2
PART NUMBER REGISTER
HEX ADDRESS: 0X02
BIT
FUNCTION
TYPE
DEFAULT
DESCRIPTION-OPERATION
7-0
Part Number
RO
0x04
Hex: 0x04 (0000 0100)
TABLE 4: VERSION NUMBER REGISTER
REGISTER 3
VERSION NUMBER REGISTER
HEX ADDRESS: 0X03
BIT
FUNCTION
TYPE
DEFAULT
DESCRIPTION-OPERATION
0-7
Version Number
RO
0x01
Hex 0x04: (0000 0001)
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