RELEASED
PM7350 S/UNI-DUPLEX
DATA SHEET
PMC-1980581
ISSUE 5
DUAL SERIAL LINK PHY MULTIPLEXER
bus formats need not be the same. When configured as a SCI-PHY or Utopia
Level 2 interface the S/UNI-DUPLEX can be either a bus master or bus slave, as
determined by the IMASTER and OMASTER inputs. When configured as an
Any-PHY interface, the S/UNI-DUPLEX can only be a bus slave. 8 and 16 bit
wide interfaces are supported in all configurations, and are determined by the
IBUS8 and OBUS8 inputs.
Table 1 Signal Name Cross-Reference
S/UNI-
DUPLEX
PIN Name
UTOPIA
Level 2
Bus Slave
UTOPIA
Level 2
Bus Master
SCI-PHY
Level 2
Bus Slave
SCI-PHY Any-PHY Bus
Level 2
Slave
Bus Master
IFCLK
TxClk
RxClk
RxEnb*
RxAddr[4:0]
n/a
TFCLK
RFCLK
RWRENB
RADDR[4:0]
RAVALID
RDAT[15:0]
RPRTY
RCA
TCLK
IENB
TxEnb*
TxAddr[4:0]
n/a
TWRENB
TADDR[4:0]
TAVALID
TDAT[15:0]
TPRTY
TCA
TENB
IADDR[4:0]
IAVALID
IDAT[15:0]
IPRTY
TADR[4:0]
TADR[5]
TDAT[15:0]
TPRTY
TPA
TxData[15:0]
TxPrty
RxData[15:0]
RxPrty
RxClav
RxSOC
n/a
ICA
TxClav
TxSOC
n/a
ISOC
TSOC
RSOC
TSOP
ISX
n/a
n/a
TSX
OFCLK
OENB
RxClk
TxClk
RFCLK
RWRENB
RADDR[4:0]
RAVALID
RDAT[15:0]
RPRTY
RCA
TFCLK
RCLK
RxEnb*
RxAddr[4:0]
n/a
TxEnb*
TxAddr[4:0]
n/a
TWRENB
TADDR[4:0]
TAVALID
TDAT[15:0]
TPRTY
TCA
RENB
OADDR[4:0]
OAVALID
ODAT[15:0]
OPRTY
OCA
RADR[4:0]
RADR[5]
RDAT[15:0]
RPRTY
RPA
RxData[15:0]
RxPrty
RxClav
RxSOC
n/a
TxData[15:0]
TxPrty
TxClav
TxSOC
n/a
OSOC
RSOC
TSOC
RSOP
OSX
n/a
n/a
RSX
Utopia and SCI-PHY are electrically compatible, the only difference is that Utopia
does not support the use of the optional OAVALID and IAVALID pins. Therefore,
whether the input and output buses are Utopia or SCI-PHY is determined by the
inclusion or exclusion of optional words in the cell format that is transferred
across the bus. The cell formats supported are presented in Fig. 6 and Fig. 7. As
programmed through register bits, bytes may be prepended to a basic ATM cell
to support applications where user defined context information is carried inband.
Also, inclusion of the H5 and H5/UDF fields (8 bit and 16 bit modes respectively)
is optional under most configurations. For bus slave configurations, the PHY
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
46
PMC [ PMC-SIERRA, INC ]
