PM6341 E1XC
DATA SHEET
PMC-910419
ISSUE 8
E1 FRAMER/TRANSCEIVER
Pin Name Type
Pin No.
PQFP PLCC
Function
RDB
Input
17
25
Active low read enable (RDB). This
signal is pulsed low to enable a E1XC
register read access. The E1XC
drives the D[7:0] bus with the contents
of the addressed register while RDB
and CSB are both low.
WRB
Input
18
26
Active low write strobe (WRB). This
signal is pulsed low to enable a E1XC
register write access. The D[7:0] bus
contents are clocked into the
addressed normal mode register on
the rising edge of WRB while CSB is
low.
ALE
Input
30
35
11
Address latch enable (ALE). This
signal latches the address bus, A[7:0],
when low. This allows the E1XC to be
interfaced to a multiplexed
address/data bus. When ALE is high,
the address latches are transparent.
RSTB
Input
Input
3
Active low reset (RSTB). This signal
asynchronously resets the E1XC.
A[0]
A[1]
A[2]
A[3]
A[4]
A[5]
A[6]
A[7]
22
23
24
25
26
27
28
29
27
28
29
30
31
32
33
34
Address bus (A[7:0]). This bus selects
specific registers during E1XC register
accesses.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
36
PMC [ PMC-SIERRA, INC ]
