PM7346 S/UNI-QJET
DATASHEET
PMC-960835
ISSUE 6
SATURN QUAD USER NETWORK INTERFACE FOR J2, E3, T3
Pin Name
Type
Pin No. Function
CSB
Input
C9
Active low Chip Select (CSB).This signal
must be low to enable S/UNI-QJET
register accesses. If CSB is not used,
(RDB and WRB determine register reads
and writes) then it should be tied to an
inverted version of RSTB.
WRB
RDB
Input
Input
B8
D9
Active low Write Strobe (WRB).This signal
is pulsed low to enable a S/UNI-QJET
register write access. The D[7:0] bus is
clocked into the addressed register on the
rising edge of WRB while CSB is low.
Active low Read Enable (RDB).This signal
is pulsed low to enable a S/UNI-QJET
register read access. The S/UNI-QJET
drives the D[7:0] bus with the contents of
the addressed register while RDB and
CSB are both low.
D[7]
D[6]
D[5]
D[4]
D[3]
D[2]
D[1]
D[0]
I/O
D12
C13
A14
B14
D13
C14
A15
B15
Bi-directional Data Bus (D[7:0]). The bi-
directional data bus D[7:0] is used during
S/UNI-QJET register read and write
accesses.
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