PM7340 S/UNI-IMA-8
PRELIMINARY
INVERSE MULTIPLEXING OVER ATM
DATA SHEET
PMC-2001723
ISSUE 3
INVERSE MULTIPLEXING OVER ATM
one for each possible link in the IMA group. A
logic ‘0’ means there is not interrupt condition
on the link, while a logic ‘1’ means interrupt
condition exists on the link.
Cmd_rd_data2: group interrupt/status. There
are 32 entries, one for each possible link in the
IMA group. See Table 17 for detail of the bits
Page 1: Link Interrupt Status page. See Table 18
for details of the bits.
Page 2: Link Status Page. See Table 19 for
details of the bits.
Note that the TX/RX links here are sorted in the same
order as in the TX_PHY_VALID and RX_PHY_VALID
vectors.
Read_delay
Cmd_rd_data n (n = 0, …. 31), page 0:
Bit 18: Current overrun defect status
Bit 16: Current LCD defect status.
Bit 17: Current LIF defect status.
Bit 15:0: rx link write pointers for the n-th RX link.
Note that the TX/RX links here are sorted in the same
order as in the TX_PHY_VALID and RX_PHY_VALID
vectors.
Cmd_rd_data 0, page 1:
Bit 15:0: rx group read pointer
Cmd_rd_data 1, page 1:
Bit 31:0: Current RDAT reader active vector for the
group. If none of the links are active (i.e., all 32 bits are
zeros), the read pointer should be considered as invalid.
Table 17
Word
Group Error/Status Bit Mapping
Bit
Data Field
Description
31:26 RESERVED
Reserved
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
204
PMC [ PMC-SIERRA, INC ]
