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PM7375-SC Datasheet(PDF) 32 Page - PMC-Sierra, Inc

No. de pieza PM7375-SC
Descripción Electrónicos  LOCAL ATM SAR & PHYSICAL LAYER
PDF  430 Pages
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Fabricante Electrónico  PMC [PMC-Sierra, Inc]
Página de inicio  http://www.pmc-sierra.com
Logo PMC - PMC-Sierra, Inc

PM7375-SC Datasheet(HTML) 32 Page - PMC-Sierra, Inc

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PM7375 LASAR-155
DATA SHEET
PMC-931127
ISSUE 6
LOCAL ATM SAR & PHYSICAL LAYER
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
16
TCP/
TLDCLK
Output
112
The TGFC/TLDCLK output is a dual function output
controlled using the UNI_POTS bit in the LASAR-155
Master Configuration register.
When the UNI_POTS bit is low, the transmit cell pulse
(TCP) indicates where the valid TGFC serial bits are
expected. If TCP is asserted high, the most significant
GFC bit is expected in the subsequent TCLK period.
TCP pulses high for one TCLK for every transmitted
cell. TCP is updated on the rising edge of TCLK.
When the UNI_POTS bit is high, the transmit line DCC
clock (TLDCLK) is a 576 kHz clock used to sample the
TLD input. TLDCLK is generated by gapping a
2.16 MHz clock.
XOFF
Input
114
The transmit off (XOFF) signal can be used to control
the transmission of user cells. When XOFF is asserted
high, the LASAR-155 is prohibited from transmitting
user cells. Under this operating condition, the
LASAR-155 can only transmit Idle/Unassigned cells.
When XOFF is low, the LASAR-155 operates normally.
XOFF is sampled on the rising edge of TCLK.



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