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PRELIMINARY
INVERSE MULTIPLEXING OVER ATM
PM7340 S/UNI-IMA-8
DATA SHEET
PMC-2001723
ISSUE 3
INVERSE MULTIPLEXING OVER ATM
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
178
NT
indication changed.
This bit is reset immediately after
read_event command is executed for
the group of which this link is a
member.
1
TX_TIMEOUT_INT
Indicates the LASR procedure timed
out prior to the link entering the
ACTIVE state.
This bit is reset immediately after
read_event command is executed for
the group of which this link is a
member.
0
RESERVED
RIPP RX Link Context Record Memory Area
The RX link context record area is located in the RIPP context memory. There
are 8 RX link context records that contain the current state machine states and
status information for the corresponding RX links. Each record is 2 words deep
by 32 bits wide, and is addressed by the physical link number.
MEM_ADDR = Area_base_address + physical link number * 0x2 + Word Offset
Unless otherwise specified, all the data fields and the reserved fields should be
cleared (to all ‘0’s) by PM prior to adding the link, and internally cleared by RIPP
during group restart.
Table 14
RIPP RX Link Context Record structure
WORD
BIT
DATA FIELD
DESCRIPTION
0
31
RX_LINK_EN
Flag bit indicating if the link is enabled
or not.
“0”: not enabled, link in UNASSIGNED
state.
“1: enabled.
This field is set by RIPP during
add_link or add_group command
processing. It is cleared by RIPP upon