S/UNI-IMA-4 Telecom Standard Product Data Sheet
Released
Mode Dir UL2 Single PHY
& Protocol
UL2 Multi-PHY
Any-PHY
Channel Address Pins:
TADR(1:0)
Device ID Register:
CFG_ADDR_MSB(6:3)
Status Pin: TCA
Channel Address Pins:
TADR(6:0)
Address Qualifier Pin: TCSB
Status Pin: TCA
TX Select
Not supported
PHY Channels: 4
PHY Channels: 4
Channel Enable Register:
TCAEN(3:0)
Channel Enable Register:
TCAEN(10:0)
Channel Address Pins:
Device ID Register:
TADR(4:0)
CFG_ADDR(15:7) or (7)
Select Pin: TENB
Channel Address: Prepend bits
(6:0)
Device Address: Prepend bits
(bit 15:7, for 16 bit mode) or
(bit 7 for 8-bit mode)
Select Pin: TENB
TX Transfer
RX Poll
Not supported
Cell Size: 8 bit X 53 or 55 bytes Cell Size: 8 bit X 54 or 56 bytes
Cell Size: 16 bit X 27 or 28
Cell Size: 16 bit X 28 or 29
words
words
Enable Pin: TENB
Enable Pin: TENB, TSX to
indicate first byte of transfer.
Pause in Cell: w/ TENB
PHY Channels: 4
PHY Channels: 1
PHY Channels: 1 (in-band
addressing is used to identify
virtual PHY’s)
Device ID Register:
DEVID(4:0)
Channel Enable Register:
RCAEN(3:0)
Device ID Register:
DEVID(4:0)
Device Address Pins:
Channel Address Pins:
Device Address Pins:
RADR(4:0)
RADR(4:0)
RADR(4:0)
Status Pin: RCA
PHY Channels: 1
Status Pin: RCA
PHY Channels: 4
Status Pin: RCA
PHY Channels: 1
RX Select
Device ID Register:
Channel Enable Register:
Device ID Register:
DEVID(4:0)
RCAEN(3:0)
DEVID(4:0)
Device Address Pins:
RADR(4:0)
Channel Address Pins:
RADR(4:0)
Device Address Pins:
RADR(4:0)
Select Pin: RENB
Select Pin: RENB
Select Pin: RENB
RX
Cell Size: 8 bit X 53, 54, 55 or Cell Size: 8 bit X 53 or 55 bytes Cell Size: 8 bit X 54 or 56 bytes
Transfer
56 bytes
Cell Size: 16 bit X 27, 28 or 29 Cell Size: 16 bit X 27 or 28
Cell Size: 16 bit X 28 or 29
words
words
words
Enable Pin: RENB
Enable Pin: RENB
Enable Pin: RENB
Channel Address: Prepend or Pause in Cell: w/ RENB
Channel Address: Prepend
UDF
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2020889, Issue 2
51
PMC [ PMC-SIERRA, INC ]
