參數(shù)資料
型號: PM7351
廠商: PMC-Sierra, Inc.
英文描述: OCTAL SERIAL LINK MULTIPLEXER
中文描述: 八路串行連接復用器
文件頁數(shù): 27/174頁
文件大?。?/td> 1790K
代理商: PM7351
RELEASED
PM7351 S/UNI-VORTEX
DATA SHEET
PMC-1980582
ISSUE 5
OCTAL SERIAL LINK MULTIPLEXER
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
17
Ball
Name
Type
Ball
No.
Function
RADR[4]
RADR[3]
RADR[2]
RADR[1]
RADR[0]
Input
B16
C16
A17
B17
D16
The RADR[4:0] signals are used to address up to
sixteen S/UNI-VORTEX devices for the purposes of
polling and selection for cell transfer.
When a RADR[4:0] value is sampled that equals the
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
C14
A15
D14
B15
The device identification address (VADR[4:0]) inputs
are the most-significant bits of the upstream polling
address space which this S/UNI-VORTEX occupies.
When the VADR[4:0] inputs match the value sampled
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.
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