PM7340 S/UNI-IMA-8
PRELIMINARY
INVERSE MULTIPLEXING OVER ATM
DATA SHEET
PMC-2001723
ISSUE 3
INVERSE MULTIPLEXING OVER ATM
RA_16_BIT_MODE
When set, the Any-PHY/UTOPIA receive side interface operates in 16-bit
mode.
0) 8-bit mode.
1) 16-bit mode.
RA_PREPEND
When set, a single 2-byte prepend is added on the Any-PHY/UTOPIA bus.
This prepend is always zero.
0) No additional prepend
1) Optional 2-byte prepend is included in cell length.
RA_HECUDF
This bit is only valid in Single Address UTOPIA Mode.
0) Place the virtual PHY ID in a prepend.
1) Place the virtual PHY ID in the HECUDF.
RA_DEVID[4:0]
This field provide the device ID that is used for polling and selection in the
Any-PHY mode or in the Single Address UTOPIA Mode. When the address
presented on the Any-PHY/UTOPIA RADR Interface pins matches this
address, the S/UNI-IMA-8 will respond to polls. The S/UNI-IMA-8 is selected
by placing when the address on RADR at the last cycle that RENB is high
matches the RA_DEVID.
RA_ENABLE
Enables the Receive Any-PHY/UTOPIA interface. Prior to this bit being set, all
outputs are tristated and all inputs are ignored on the Interface.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
114
PMC [ PMC-SIERRA, INC ]
