参数资料
型号: WJLXT384LEB1
厂商: CORTINA SYSTEMS INC
元件分类: 数字传输电路
英文描述: DATACOM, PCM TRANSCEIVER, PQFP144
封装: 20 X 20MM, ROHS COMPLIANT, LQFP-144
文件页数: 72/140页
文件大小: 1514K
代理商: WJLXT384LEB1
37
Document Number: 248994
Revision Number: 005
Revision Date: November 28, 2005
Intel LXT384 Octal T1/E1/J1 S/H PCM Transceiver with JA
5.5
Clocks and Clock-Related Signals
Table 11 lists and describes LXT384 Transceiver clocks and clock-related signals.
Note:
Within this table, ‘RCLK’ references RCLK7:0 and ‘TCLK’ references TCLK7:0. Each RCLK
and TCLK signal is used with corresponding signals.
Example: RCLK6 is the receive clock used by RPOS6 and RNEG6.
Example: TCLK5 is the transmit clock used by TPOS5 and TNEG5.
Table 11. Clocks and Clock-Related Signals (Sheet 1 of 2)
Signal
Name
QFP
Pin
PBGA
Ball
Signal
Type
Signal Description
CLKE
115
E13
DI
Clock Edge Select Input.
CLKE is used in clock and data recovery. When the recovery mode is
for:
the CLKE pin:
Low causes (1) both RDATA or RPOS and RNEG to be valid on
the rising edge of RCLK and (2) SDO to be valid on the falling
High causes (1) both RDATA or RPOS and RNEG to be valid on
the falling edge of RCLK and (2) SDO to be valid on the rising
Mode”), the output polarity on both RDATA or RPOS and RNEG
is:
Active-low when CLKE is low.
Active-high when CLKE is high
1. DI: Digital Input
CLKE
RCLK for Valid
RNEG/RPOS
SCLK for Valid
SDO
Low
High
RCLK
SCLK
RCLK
SCLK
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