RELEASED
PM7351 S/UNI-VORTEX
DATA SHEET
PMC-1980582
ISSUE 5
OCTAL SERIAL LINK MULTIPLEXER
Ball
Ball
Type No. Function
Name
WRB
Input AC17 The active-low write strobe (WRB) signal is low during
S/UNI-VORTEX register write accesses. The D[7:0]
bus contents are clocked into the addressed register
on the rising WRB edge while CSB is low.
D[7]
D[6]
D[5]
D[4]
D[3]
D[2]
D[1]
D[0]
I/O AC14 The bi-directional data bus D[7:0] is used during
AB14 S/UNI-VORTEX register read and write accesses.
AA14
AC15
Y14
AB15
AA15
AB16
A[9]/TRS
A[8]
Input AB18 The address bus A[9:0] selects specific registers
AC19 during S/UNI-VORTEX register accesses.
A[7]
Y17
A[6]
AA18 The test register select (TRS) signal selects between
A[5]
AB19 normal and test mode register accesses. TRS is high
A[4]
AC20 during test mode register accesses, and is low during
A[3]
AA19 normal mode register accesses.
A[2]
AB20
AC21
Y19
A[1]
A[0]
RSTB
ALE
Input AA16 The active-low reset (RSTB) signal provides an
asynchronous S/UNI-VORTEX reset. RSTB is a
Schmitt triggered input with an integral pull-up resistor.
Input AB17 The address latch enable (ALE) is active-high and
latches the address bus A[9:0] when low. When ALE
is high, the internal address latches are transparent.
It allows the S/UNI-VORTEX to interface to a
multiplexed address/data bus. ALE has an integral
pull-up resistor.
INTB
OD
Y13 The active-low interrupt (INTB) signal goes low when
a S/UNI-VORTEX interrupt source is active and that
source is unmasked. The S/UNI-VORTEX may be
enabled to report many alarms or events via
Output
interrupts. INTB becomes high impedance when the
interrupt is acknowledged via an appropriate register
access. INTB is an open drain output.
JTAG Boundary Scan Port
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
23
PMC [ PMC-SIERRA, INC ]
