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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
163
2
INVALID_ICP_INT_
EN
Invalid_ICP interrupt enable
‘0’ Interrupt not enabled
‘1’ Interrupt enabled.
Rx Timeout Interrupt enable.
‘0’ Interrupt not enabled
‘1’ Interrupt enabled.
1
RX_TIMEOUT_INT
0
RESERVED
RIPP Group Context Record Memory Area
The group context record area is located in the RIPP context memory. There are
4 group context records that contain the current state machine states and status
information for the corresponding groups. Each record is 16 words deep by 32
bits wide, and is addressed by the group tag number.
MEM_ADDR = Area_base_address + Group_tag * 0x10 + Word Offset
Unless otherwise specified, all data and the reserved fields should be cleared (to
all ‘0’s) by PM prior to adding the group; they will be cleared by RIPP during a
group restart process
Table 12
RIPP Group Context Record Structure
WORD
BIT
DATA FIELD
DESCRIPTION
0
31
GROUP_EN
Indicates if the current group is
enabled. This bit is set by PM using the
add_group command, and cleared by
PM using the delete_group command.
‘0’: not enabled (group in
NOT_CONFIGURED state)
‘1’: the group is enabled and currently
active.
This field will remain at its current value
during a group-restart.
30:27
GSM
Group state machine state.
“0000”: Start-up