cn8236 Mindspeed Technologies, cn8236 Datasheet - Page 164

• Manufacturer Part Number: cn8236
• Description: Atm Servicesar Plus With Xbr Traffic Management
• Manufacturer: Mindspeed Technologies

5.0 Reassembly Coprocessor
5.7 Reassembly Control and Data Structures
Table 5-31. Reassembly Status Queue Entry Descriptions (2 of 2)
5-54
STATUS
FWD_PM
OAM
STM
BIPV
Field Name
Sets various status bits. The STATUS field contains the following control bits:
FFPD
EPD
FW
UNDF
OVFL
SFPD
TO
ABORT
CNT_ROVR = Indication that the SERVICE_CNT counter has rolled over on the channel or an AAL3/4
PM-OAM Forward Monitoring cell detected.
A non-0 field indicates that an OAM or management cell has been received as follows:
001 = F4 OAM
010 = F4 OAM End to End
100 = F5 OAM
101 = F5 OAM End to End
110 = PTI = 6
111 = PTI = 7
Sets various bits related to Streaming Mode. The STM field contains the following control bits:
EOM
BOM
STM_MODE = Indication that Streaming Mode is enabled on the channel.
BFR1
BIP 16 violations. Same as BLER0+1 field in Backward Reporting PM-OAM cell.
FFPD
16
= DMA FIFO buffer Full Packet Discard.
= Early Packet Discard occurred. A partially reassembled CPCS-PDU has been discarded
= Firewall error condition occurred. If early packet discard occurs, EPD is set.
= Free Buffer Queue Underflow occurred. If early packet discard occurs, EPD is set.
= Last available Status Queue entry.
= Status Full Packet Discard occurred. EPD is not set.
= Reassembly time-out condition occurred on this channel. EPD is not set.
= Abort function detected. EPD not set.
= In Streaming Mode or BOM Interrupt mode, this bit identifies that the buffer contains
= In Streaming Mode or BOM Interrupt mode, this bit identifies that the buffer contains a
= In Streaming Mode, indicates which free buffer queue the buffer came from. Logic high
due to firewall, buffer underflow, LI_EPD, SN_EPD, ST_EPD, CLP discard or Max PDU
length exceeded.
MIB counter has rolled over in an AAL3/4 Head VCC entry. If AAL3/4 MIB, then the
A3L2_ERR field is active in the PDU_CHECKS field and indicates which AAL3/4 MIB
counter has rolled over.
an EOM.
BOM. In Message Mode with BOM interrupt enabled, indicates that status entry points
to only one buffer which contains a BOM.
indicates COM(BFR1), logic low indicates BOM(BFR0).
15
EPD
Mindspeed Technologies
3
EOM
14
FW
BOM
13
UNDF
2
Description/Function
ATM ServiceSAR Plus with xBR Traffic Management
STM_MODE
OVFL
12
1
™
11
SFPD
BFR1
0
10
TO
ABORT
28236-DSH-001-B
9
CNT_ROVR
CN8236
8