S/UNI-IMA-4 Telecom Standard Product Data Sheet
Released
Register 0x028: Transmit Any-PHY Address Config Register (TXAPS_ADD_CFG)
Bit
15:7
6:0
Type
R/W
R/W
Function
CFG_ADDR_MSB
Unused
Default
0
0
CFG_ADDR_MSB[15:7]
These bits contain the configured slave address used for Any-PHY polling and selection in
the transmit direction. Depending on the mode of the Any-PHY/UTOPIA interface different
bits of this field are used.
In Any-PHY 16-bit mode device selection, the upper nine bits of the prepended address on
the Any-PHY bus is compared with CFG_ADDR_MSB to select the device. The lower
seven bits of the prepended address on the Any-PHY bus are not compared with this field,
and are used only to route each cell to the targeted virtual PHY FIFO.
In Any-PHY 8-bit mode device selection, the MSB of the prepended address octet on the
Any-PHY bus is compared with CFG_ADDR_MSB[7] to select the device. The lower
seven bits of the prepended address on the Any-PHY bus are not compared with this field,
and are used only to route each cell to the targeted virtual PHY FIFO.
In both 8-bit and 16-bit Any-PHY device polling, when the TCSB pin is low during the
proper clock cycle, the device drives the TPA output signal with the virtual PHY FIFO
status of the virtual PHY identified by the TADR[6:0] address pins, if that virtual PHY has
been enabled with its corresponding Register 0x020 TCAEN[10:0] bit.
CFG_ADDR_MSB[15:11] are not used during device polling.
In UTOPIA Level 2 mode, this register is not used. To disable UTOPIA transmit ports, the
Transmit Any-PHY/UTOPIA Cell-Available Enable register is provided.
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2020889, Issue 2
116
PMC [ PMC-SIERRA, INC ]
