PM5356 datasheet(90/307 Pages) PMC

90 / 307 page

RELEASED

S/UNI-622-MAX

PMC-Sierra, Inc.

PM5356

S/UNI-622-MAX

DATASHEET

PMC-1980589

ISSUE 6

SATURN USER NETWORK INTERFACE (622-MAX)

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND FOR ITS CUSTOMERS’ INTERNAL USE

Bit

Type

Function

Default

Bit 7

R/W

APSFRST

Bit 6

APSI

Bit 5

Unused

Bit 4

R/W

APSFEBE

Bit 3

R/W

APSRDI

Bit 2

R/W

APSPD

Bit 1

R/W

APSOE

Bit 0

R/W

APSEN

This register controls the APS transmit path override and the transmit path RDI

and FEBE controls for 1+1 APS operation. See the Operation section for more

discussion

APSEN:

The APSEN bit controls the 1+1 APS mode of the S/UNI-622-MAX. When

APSEN is set high, the S/UNI-622-MAX transmit path data stream may be

supplied to another S/UNI-622-MAX using the POUT[7:0] bus. When APSEN

is set low, the S/UNI-622-MAX operates normally and POUT[7:0] is held at a

constant value.

APSOE:

The APSOE bit controls the direction of the APS[4:0] pins. When APSOE is

set low, the APS[4:0] pins are inputs and supply path RDI and FEBE

information to TPOP. When APSEN is set high, the APS[4:0] pins are outputs

and supply the receive path RDI and FEBE information from RPOP.

APSPD:

The APSPD bit controls overwriting of the transmit path data stream. When

APSPD is set high, the transmit path data stream from TPOP is overwritten

from the data sampled on the parallel input PIN[7:0] bus. A four-byte FIFO is

used to handle minor phase variations between the transmit clock TCLK and

the parallel input clock PICLK. When APSPD is set low, the TPOP path data

stream is used.

PM5356 Datasheet(PDF) 90 Page - PMC-Sierra, Inc

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