PM5343STXC View Datasheet(PDF) - PMC-Sierra
Part Name
Description
MFG CO.
'PM5343STXC' PDF : 198 Pages View PDF
DATA SHEET
PMC-930303
ISSUE 6
PM5343 STXC
SONET/SDH TRANSPORT OVERHEAD TRANSCEIVER
Pin Name Pin Type Pin Function
No.
D[7]
I/O
100 The bidirectional data bus, D[7:0], is used
D[6]
101 during STXC read and write accesses.
D[5]
104
D[4]
105
D[3]
106
D[2]
107
D[1]
108
D[0]
109
RDB/
E
WRB/
RWB
RSTB
Input
Input
Input
113 The active low read enable (RDB) signal is low
during a STXC read access. The STXC drives
the D[7:0] bus with the addressed register's
contents while RDB and CSB are low.
The active high external access signal (E) is
set high during STXC register access while in
Motorola bus mode.
112 The active low write strobe (WRB) signal is low
during a STXC write access. The D[7:0] bus
contents are clocked into the addressed
register on the rising WRB edge while CSB is
low.
The read/write select signal (RWB) selects
between STXC register read and write
accesses while in Motorola bus mode. The
STXC drives the data bus D[7:0] with the
contents of the addressed register while CSB is
low and RWB and E are high. The contents of
D[7:0] are clocked into the addressed register
on the falling E edge while CSB and RWB are
low.
110 The active low reset (RSTB) signal is low to
provide an asynchronous reset to the STXC.
This schmitt triggered pin contains an internal
pull up resistor.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND FOR ITS CUSTOMERS’ INTERNAL USE 32
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