PM5363 TUPP+622
TUPP+622
DATASHEET
PMC-1981421
ISSUE 4
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR FOR 622 MBIT/S
INTERFACES
Pin Name
Type
Pin
No.
Function
RAD[4]
Output AC7 The receive alarm port #4 (RAD[4]) contains the
tributary path BIP error count, the RDI status
and the PDI status of each tributary in the STM-
1 #4. RAD[4] is updated on the falling edge of
POHCK.
MBEB
Input
C6
The active low Motorola bus enable (MBEB)
signal configures the TUPP+622 for Motorola
bus mode where the RDB/E signal functions as
E, and the WRB/RWB signal functions as RWB.
When MBEB is high, the TUPP+622 is
configured for Intel bus mode where the RDB/E
signal functions as RDB. The MBEB input has
an integral pull up resistor.
CSB
Input
Input
A4
B6
The active low chip select (CSB) signal is low
during TUPP+622 register accesses. If CSB is
not required (i.e., register accesses are
controlled by using the RDB/E and WRB/RWB
signals only), CSB must be connected to an
inverted version of RSTB.
The active low read enable (RDB) signal is low
during TUPP+622 register read accesses while
in Intel bus mode. The TUPP+622 drives the
D[7:0] bus with the contents of the addressed
register while RDB and CSB are low.
RDB/
E
The active high external access (E) signal is
high during TUPP+622 register access while in
Motorola bus mode.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
80
PMC [ PMC-SIERRA, INC ]
