PM7340 S/UNI-IMA-8
PRELIMINARY
INVERSE MULTIPLEXING OVER ATM
DATA SHEET
PMC-2001723
ISSUE 3
INVERSE MULTIPLEXING OVER ATM
Register 0x30A: Receive ATM Congestion Status
Bit
Type
Function
Default
15:8
7:0
R2C
R2C
Reserved
CONG(7:0)
0
0
The status in this register is latched, and it is cleared when read.
CONG(7:0):
In multiple channel UTOPIA mode, a set bit indicates that a cell has been
dropped due to a full ATM FIFO channel.
In single channel mode, bits 7:1 are unused. Bit 0 indicates that a cell has
been dropped because the single shared FIFO is full, or because 16 cells are
already stored in the FIFO for the current group.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
236
PMC [ PMC-SIERRA, INC ]
