S/UNI-IMA-4 Telecom Standard Product Data Sheet
Released
RDAT TC Link Context Memory (MEM_SELECT=0xA)
Purpose: Contains state information for each TC Link. VPHY_ID is the only field that must be
configured.
Usage: TC Links only.
Maintained by: RDAT, microprocessor.
Record Size: One 32-bit word.
MEM_ADDR = TC Tag
Table 29 RDAT TC Link Context Record
Bits
31:16
Parameter
vphy_id
Description
Virtual PHY ID.
For UTOPIA L2 Multi-Address mode, this identifies which channel in
the RXAPS FIFO cells received for this group will be written to. The
least significant 5 bits determine the destination channel of the
RXAPS FIFO for this IMA group, and the upper 11-bits are unused.
For Any-PHY and UTOPIA L2 Single-Address modes, this identifies
the address that will be prepended to all cells as they are written to
the single channel RXAPS FIFO. For single channel UTOPIA mode
and Any-PHY mode, the least significant 7 bits must uniquely identify
a channel (legal values of 0-7 and the upper 9 bits are user
selectable.
15:0
read_ptr
Current read pointer for the delay compensation buffers associated
with this TC connection.
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2020889, Issue 2
227
PMC [ PMC-SIERRA, INC ]
