TXC-06412BIOG Transwitch Corporation, TXC-06412BIOG Datasheet - Page 139

• Manufacturer Part Number: TXC-06412BIOG
• Manufacturer: Transwitch Corporation

Specifications of TXC-06412BIOG

• Lead Free Status / RoHS Status: Not Compliant

1 3 9 o f 2 26
11.12.1.3 Per ATM Stream Status & Alarms
11.12.1.4 Per ATM Stream Counters
The counters are only incremented while in the SYNC state.
The relationship between the ATM stream counters depends on whether or not cells with an
uncorrected HEC error are filtered.
In case these cells are filtered, the sum of the number of cells forwarded towards Rx FIFO,
the number of cells discarded due to cell filtering, the number of cells with uncorrected HEC
error and the number of cells discarded due to Rx FIFO overflow is equal to the total number
of cells received.
In case these are not filtered, the sum of the number of cells forwarded towards Rx FIFO, the
number of cells discarded due to cell filtering and the number of cells discarded due to Rx
FIFO overflow is equal to the total number of cells received.
Translation of the ATM cell stream addresses (0, 1, . . . , 11) into 12 configurable 5-bit
UTOPIA PHY addresses is done in the UTOPIA interface block.
• Cell filtering (discard)
• Out of Cell Delineation (OCD)
• Loss of Cell Delineation (LCD)
• Overflow (shared with egress PPP)
• Number of cells (0 . . . 2
• Number of cells (0 . . . 2
• Number of cells (0 . . . 2
• Number of cells (0 . . . 2
• Number of cells (0 . . . 2
• Enable/disable single-bit HEC error correction
• HEC offset (coset) pattern (0x00 . . . 0xFF)
• Match header pattern
• Match header mask: to indicate don’t care bits in the matching process
• Enable/disable cell filtering for matched cells
• Enable/disable cell filtering for ITU-T I.432 idle cells
• Enable/disable cell filtering for ITU-T I.361 unassigned cells
• Enable/disable cell filtering for cells with uncorrected HEC error
are not counted)
- High Order Pointer Tracking, Retiming and Pointer Generation -
disabled, single-bit HEC errors in consecutive cells are all corrected
24
16
16
16
24
-1) forwarded towards Rx FIFO (shared with egress PPP)
-1) with corrected HEC error
-1) with uncorrected HEC error
-1) discarded due to Rx FIFO overflow
-1) discarded due to cell filtering (discards due to HEC errors
PRELIMINARY TXC-06412B-MB, Ed. 2
PHAST-12P Device
DATA SHEET
TXC-06412B
June 2005