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PM7329 S/UNI-APEX-1K800
DATASHEET
PMC-2010141
ISSUE 2
ATM TRAFFIC MANAGER AND SWITCH
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
44
Pin Name
Type
Pin
No.
Function
INTLOB
OD
D3
Active Low Open-Drain Low Priority Interrupt.
This signal goes low when an S/UNI-APEX-1K800
low priority interrupt source is active and that source
is unmasked. The S/UNI-APEX-1K800 may be
enabled to report many alarms or events via
interrupts. INTLOB becomes high impedance when
the interrupt is acknowledged via an appropriate
register access.
INTLOB is an asynchronous signal.
BUSPOL
Input
E4
Bus Control Polarity.
This signal indicates the
polarity of the WR and BLAST inputs to S/UNI-
APEX-1K800.
When high, the BLAST pin is active high (high
indicates the last word of the burst) and the WR pin
is active low (low indicates write).
When low, the BLAST pin is active low (low
indicates the last word of the burst) and the WR pin
is active high (high indicates write).
BUSPOL is sampled on the rising edge of BCLK.
9.8 General (10 signals)
Pin Name
Type
Pin
No.
Function
RSTB
Input
AA4
Reset Bar.
This signal provides an asynchronous
S/UNI-APEX-1K800 reset. RSTB is a Schmitt
triggered input with an internal pull-up resistor.
OE
Input
AC1
Output Enable
OE is an active high signal, which
allows all of the outputs of the device to operate in
their functional state. When this signal is low, all
outputs of the S/UNI-APEX-1K800 are Hi-Z’d, with
the exception of TDO
.
OE has an internal pull up resistor.