cn8237 Mindspeed Technologies, cn8237 Datasheet - Page 341

• Manufacturer Part Number: cn8237
• Description: Atm Oc-12 Servicesar Plus With Xbr Traffic Management
• Manufacturer: Mindspeed Technologies

CN8237
ATM OC-12 ServiceSAR Plus with xBR Traffic Management
15.3.1 Reassembly Control Registers
28237-DSH-001-C
Table 15-6. Table of Values for Reassembly Control Register Initialization (1 of 2)
RSM_CTRL0
(Reassembly Control
Register 0)
RSM_CTRL1
(Reassembly Control
Register 1)
Register
RSM_ENABLE
RSM_RESET
VPI_MASK
RSM_PHALT
PREPEND_INDEX
FWALL_EN
RSM_FBQ_DIS
RSM_STAT_DIS
GTO_EN
MAX_LEN
GDPRI
Reserved
EN_PROG_BLK_SZ
VCI_IT_BK_SZ
EN_VPI_SIZE
OAM_FF_DSC
OAM_EN
OAM_QU_EN
OAM_BFR_QU
OAM_STAT_QU
Reserved
15.3 Reassembly Initialization
Before reassembly is enabled, the host must allocate and initialize all of the
reassembly control registers.
field.
Field
Mindspeed Technologies
Initialized
Value
0x10
0–1
0x4
0x0
0x4
0x4
0x0
0
1
0
0
1
0
0
1
1
0
0
1
1
1
Table 15-6
Must be set to a logic low until initialization of all
reassembly structures is complete. Set to a logic high
to commence reassembly process.
Use CONFIG0(GLOBAL_RESET) to initialize the SAR.
UNI VPI space selected.
RSM halt on receive parity error disabled.
Disabled
Firewall function enabled.
Free buffer queue underflow protection enabled.
Status queue overflow protection enabled.
Enable internal time-out interrupt.
AAL5 max CPCS-PDU length = 16,384 bytes.
Global Service Discard Priority = 4.
Must be initialized to 0.
Disabled
Disabled
Disabled
OAM cells discarded when Incoming DMA FIFO buffer
almost full.
OAM detection enabled.
Global OAM FB and Stat queues enabled.
Global OAM free buffer queue = 4.
Global OAM status queue = 4.
Must be initialized to 0.
lists the initialization values for each
™
15.0 SAR Initialization—Example Tables
Notes
15.3 Reassembly Initialization
15-9