參數(shù)資料
型號(hào)： XRT83VL38IB-F
廠商： Exar Corporation
文件頁(yè)數(shù)： 46/95頁(yè)
文件大?。?/td> 0K
描述： IC LIU SH T1/E1/J1 OCTAL 225BGA
標(biāo)準(zhǔn)包裝： 84
類型： 線路接口裝置（LIU）
驅(qū)動(dòng)器/接收器數(shù)： 8/8
規(guī)程： E1
電源電壓： 3.14 V ~ 3.47 V
安裝類型： 表面貼裝
封裝/外殼： 225-BGA
供應(yīng)商設(shè)備封裝： 225-BGA（19x19）
包裝： 托盤
其它名稱： 1016-1481
XRT83VL38IB-F-ND
XRT83VL38
46
OCTAL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
REV. 1.0.1
MICROPROCESSOR INTERFACE
The microprocessor interface can be accessed through a standard serial interface or a standard parallel
microprocessor interface.
The SER_PAR pin is used to select between the two.
By default, the chip is
configured in the Parallel Microprocessor interace. For Serial communication, this pin must be pulled “High”.
SERIAL MICROPROCESSOR INTERFACE BLOCK
The serial microprocessor uses a standard 3-pin serial port with CS, SCLK, and SDI for programming the LIU.
Optional pins such as SDO, INT, and RESET allow the ability to read back contents of the registers, monitor
the LIU via an interrupt pin, and reset the LIU to its default configuration by pulling reset "Low" for more than
10
S. A simplified block diagram of the Serial Microprocessor is shown in Figure 25.
SERIAL TIMING INFORMATION
The serial port requires 24 bits of data applied to the SDI (Serial Data Input) pin. The Serial Microprocessor
samples SDI on the rising edge of SCLK (Serial Clock Input). The data is not latched into the device until all 24
bits of serial data have been sampled. A timing diagram of the Serial Microprocessor is shown in Figure 26.
NOTE: For applications without a free running SCLK, a minimum of 1 SCLK pulse must be applied when CS is “High”,
befrore pulling CS “Low”.
24-BIT SERIAL DATA INPUT DESCRITPTION
FIGURE 25. SIMPLIFIED BLOCK DIAGRAM OF THE SERIAL MICROPROCESSOR INTERFACE
FIGURE 26. TIMING DIAGRAM FOR THE SERIAL MICROPROCESSOR INTERFACE
Serial
Microprocessor
Interface
CS
SDI
SCLK
SDO
RESET
INT
HW/Host
SER_PAR
R/W
ADDR[0] - ADDR[7]
Don't Care
DATA[0] - DATA[7]
CS
SDI
SCLK
8-Bit Address
8-Bit Data
7-Bit Don't Care
1=Read
0=Write
SDO
DATA[0] - DATA[7]
Readback
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