cn8236 Mindspeed Technologies, cn8236 Datasheet - Page 326
cn8236
Manufacturer Part Number
cn8236
Description
Atm Servicesar Plus With Xbr Traffic Management
Manufacturer
Mindspeed Technologies
Datasheet
1.CN8236.pdf
(443 pages)
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14.0 CN8236 Registers
14.3 Segmentation Registers
0x84
(SEG_VBASE)
The SEG_VBASE register sets the base address in SAR-shared memory for the segmentation VCC table and
the schedule table. Both base addresses are 128-byte aligned, and only the 16 most significant bits of the address
are specified in the SEG_VBASE register.
0x88
The SEG_PMBASE register sets the base address in SAR-shared memory for the VBR bucket table and the
performance monitoring table. Both base addresses are 128-byte aligned, and only the 16 most significant bits
of the address are specified in the SEG_PMBASE register.
14-10
31–16
31–16
15–0
15–0
1-0
Bit
Bit
Bit
3
2
—
—
Segmentation VCC Table and Schedule Table Base Address Register
Segmentation PM Base Register (SEG_PMBASE)
Field
Field
Field
Size
Size
Size
16
16
16
16
1
1
2
SEG_HS_DIS
TX_RND
TR_SIZE[1:0]
SEG_SCHB[15:0]
SEG_VCCB[15:0]
SEG_BCKB[15:0]
SEG_PMB[15:0]
Name
Name
Name
Mindspeed Technologies
Base address for the schedule table.
Base address for the segmentation VCC table.
Base address for the VBR bucket table. (See
loading bucket table entries.)
Base address for the performance monitoring table.
Segmentation Host Status Disable—Disable segmentation check for PCI
memory status queue full condition. If this bit is not set, the segmentation
coprocessor does not segment any cells for a VCC assigned to a full PCI
memory status queue. This bit can be used to disable overflow checking
when the queues are sized large enough to prevent overflow.
Set for transmit queue servicing in round-robin order.
Clear for transmit queue servicing in priority order (31 is highest priority).
Number of entries in each transmit queue.
00 = 64
01 = 256
10 = 1,024
11 = 4,096
ATM ServiceSAR Plus with xBR Traffic Management
™
Description
Description
Description
Section
6.2.4.4, for details on
28236-DSH-001-B
CN8236
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