RS8234EBGC Mindspeed Technologies, RS8234EBGC Datasheet - Page 148

• Manufacturer Part Number: RS8234EBGC
• Description: RS8234EBGC ATM XBR SAR
• Manufacturer: Mindspeed Technologies

5.0 Reassembly Coprocessor
5.7 Reassembly Control and Status Structures
Table 5-15. Reassembly VCC Table Descriptions (3 of 3)
5-44
BASIZE
NEXT_ST
NEXT_SN
BTAG
STAT
BFR1
BFR0
CBUFF_PNTR
BOM_BD_PNTR
CBFR1
CURR_BD_PNTR
SEG_VCC_INDEX
SERV_DIS
RX_COUNTER/
VPC_INDEX
Field Name
AAL3/4 BASize field. Used to record the BASize field from the AAL3/4 PDU, in order to check
against the LENGTH field in the AAL3/4 PDU trailer.
Next Segment Type (ST) expected.
Next Sequence Number (SN) expected.
Records the AAL3/4 CPCS-PDU’s Btag field, in order to check against the Etag field in the
CPCS-PDU trailer.
Status queue pool number.
COM free buffer queue pool number.
BOM free buffer queue pool number.
Current buffer pointer. Pointer to the current unused position of the cell buffer where cell payload
data may be written. In Logical FIFO Mode, the address of the FIFO.
BOM buffer descriptor pointer. Pointer to the BOM buffer descriptor.
Current BFR1 indication. A logic high indicates that current buffer is from BFR1 pool and logic low
indicates from BFR0 pool.
Current buffer descriptor pointer. Pointer to the buffer descriptor corresponding to the current
buffer in use.
Channel index of corresponding segmentation channel. Used by ER and PM-OAM processing.
Service Discard counter. Counts the number of CPCS-PDUs discarded due to either LANE_LECID
echo suppression, CLP discard, or frame relay DE discard.
When ABR_VPC is a logic low, RX_COUNTER is the firewall mode credit counter. When ABR_VPC is
a logic high, VPC_INDEX is used to control a VPC group. See ABR_VPC for description of this field.
Mindspeed Technologies
Description/Function
ATM ServiceSAR Plus with xBR Traffic Management
™
28234-DSH-001-B
RS8234