參數(shù)資料
型號: IDT77155
廠商: Integrated Device Technology, Inc.
英文描述: PHY (TC-PMD) USER NETWORK INTERFACE FOR 155 MBPS ATM NETWORK APPLICATIONS
中文描述: 物理層(增距鏡TC - PMD)的用戶網(wǎng)絡(luò)接口的155Mbps的ATM網(wǎng)絡(luò)中的應(yīng)用
文件頁數(shù): 21/50頁
文件大?。?/td> 307K
代理商: IDT77155
IIDT77155
155Mbps ATM PHY (TC-PMD) USER NETWORK INTERFACE
ADVANCED INFORMATION
Commercial Temperature Range
8.03
21
MASTER CONTROL REGISTER
ADDRESS 0X05
DEFAULT = 8’B00100000
Bit
Bit 7
Type
R/W
Symbol
rxLOCIEn
Function
Loss of cell delineation interrupt enable. When set to a logic one, the
INTB signal of the chip is asserted when a change in the LOC signal
occurs.
Loss of cell delineation (LOC) indication.
Set payload pointer at 522 and disable any pointer movement. (Default = 1)
Reserved
Reserved
Line loopback enable. When a logic one, TXD+/- are connected internally
to RXD+/-.
Diagnostic loopback enable. The serial output and clock streams are
connected internally to the serial input streams.
Loop time operation enable. When a logic one, the transmitter clock is the
recovered receive clock when RBYP is disabled, or RRCLK+/- when
RBYP is asserted. By default, the transmit clock is derived from TRCLK+/-.
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
R
LOC
txFixptr
txLLoop
R/W
R/W
Bit 1
R/W
rxDLoop
Bit 0
R/W
rxLoopT
TRANSMIT CLOCK SYNTHESIS CONTROL/STATUS REGISTER
ADDRESS 0X06
DEFAULT = 8’B0000X000
Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Type
R
Symbol
txOOL
Function
Reserved
Reserved
Reserved
Reserved
Transmit out of lock status signal indicating the transmit clock synthesis
logic is unable to lock to the reference clock TRCLK+/-.
Reserved
Interrupt enable for the transmit out of lock indication.
Selects the expected frequency of TRCLK+/-. If a logic 0, the reference
frequency is 19.44 MHz, else the reference frequency must be 6.48 MHz.
It affects the clock synthesis frequency only when TBYP is deasserted.
Bit 2
Bit 1
Bit 0
R/W
R/W
txOOLIEn
txrefSel
RECEIVE CLOCK/DATA RECOVERY CONTROL/STATUS REGISTER
ADDRESS 0X07
DEFAULT = 8’B0000X000
Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Type
R
Symbol
rxOOL
Function
Reserved
Reserved
Reserved
Reserved
Receive out of lock status signal indicating the receive clock/data recovery
logic is unable to lock to the input data stream. It is asserted if the
recovered clock is not within 244ppm of the reference clock RRCLK+/- or
if there are no transitions on the RXD+/- inputs for 80n bit periods.
Reserved
Interrupt enable for the receive out of lock indication.
Selects the expected frequency of RRCLK+/-. If a logic 0, the reference
frequency is 19.44 MHz, else the reference frequency must be 6.48 MHz.
It affects the clock/data recovery logic frequency only when RBYP is
deasserted.
Bit 2
Bit 1
Bit 0
R/W
R/W
rxOOLIEn
rxrefSel
相關(guān)PDF資料
PDF描述
IDT77155L155PX PHY (TC-PMD) USER NETWORK INTERFACE FOR 155 MBPS ATM NETWORK APPLICATIONS
IDT77301 UTOPIAFIFO 1 TO 4 (128 x 9 x 4) DEMULTIPLEXER-FIFO
IDT77301L12PF UTOPIAFIFO 1 TO 4 (128 x 9 x 4) DEMULTIPLEXER-FIFO
IDT77301L12PFI UTOPIAFIFO 1 TO 4 (128 x 9 x 4) DEMULTIPLEXER-FIFO
IDT77305 UTOPIAFIFO 4 PORT MULTIPLEXER FIFO
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