RELEASED
PM7351 S/UNI-VORTEX
DATA SHEET
PMC-1980582
ISSUE 5
OCTAL SERIAL LINK MULTIPLEXER
Ball
Ball
Type No. Function
Name
RADR[4]
RADR[3]
RADR[2]
RADR[1]
RADR[0]
Input B16 The RADR[4:0] signals are used to address up to
C16 sixteen S/UNI-VORTEX devices for the purposes of
A17 polling and selection for cell transfer.
B17
When a RADR[4:0] value is sampled that equals the
D16
state of VADR[4:0], the RPA output is driven to
indicate whether a cell is available for transfer. If
RANYPHY is logic high, RPA has an additional cycle
of latency.
If the RADR[4:0] value equals the state of VADR[4:0]
when the RENB is last sampled high, the S/UNI-
VORTEX will initiate a cell transfer. If RANYPHY is
logic low, the device must be reselected to resume a
cell transferred that has been halted by deasserting
RENB high.
The RADR[4:0] bus is sampled on the rising edge of
RCLK.
VADR[4]
VADR[3]
VADR[2]
VADR[1]
VADR[0]
Input B14 The device identification address (VADR[4:0]) inputs
C14 are the most-significant bits of the upstream polling
A15 address space which this S/UNI-VORTEX occupies.
D14
When the VADR[4:0] inputs match the value sampled
B15
on RADR[4:0] inputs, the S/UNI-VORTEX drives RPA
to indicate the existence of queued cells. Otherwise,
RPA is high impedance.
VADR[4:0] are expected to be held static.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
17
PMC [ PMC-SIERRA, INC ]
