PM5361-RI PMC-Sierra, Inc., PM5361-RI Datasheet - Page 25

• Manufacturer Part Number: PM5361-RI
• Description: SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR
• Manufacturer: PMC-Sierra, Inc.

DATA SHEET
PMC-920526
Pin Name
RDB/
E
WRB/
RWB
D[0]
D[1]
D[2]
D[3]
D[4]
D[5]
D[6]
D[7]
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
Type
Input
Input
I/O
ISSUE 8
Pin
No.
35
37
15
16
17
18
23
24
25
26
Function
The active low read enable (RDB) signal is low
during TUPP register read accesses while in
Intel bus mode. The TUPP drives the D[7:0] bus
with the contents of the addressed register while
RDB and CSB are low.
The active high external access (E) signal is high
during TUPP register access while in Motorola
bus mode.
The active low write strobe (WRB) signal is low
during a TUPP register write accesses while in
Intel bus mode. 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 (RWB) signal selects
between TUPP register read and write accesses
while in Motorola bus mode. The TUPP drives
the D[7:0] bus with the contents of the addressed
register while CSB is low and RWB and E are
high. The D[7:0] bus contents are clocked into
the addressed register on the falling E edge
while CSB and RWB are low.
The bidirectional data bus D[7:0] is used during
TUPP register read and write accesses.
TRIBUTARY UNIT PAYLOAD PROCESSOR
17
PM5361 TUPP