RS8234EBGC Mindspeed Technologies, RS8234EBGC Datasheet - Page 141

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

RS8234
ATM ServiceSAR Plus with xBR Traffic Management
28234-DSH-001-B
Table 5-5. VPI Index Table Entry Descriptions
Table 5-8. VCI Index Table Descriptions
Table 5-4. VPI Index Table Entry Format with EN_PROG_BLK_SX(RSM_CTRL1) Enabled
Table 5-6. Normal VCI Index Table Format
Table 5-7. VCI Index Table Format with EN_PROG_BLK_SZ(RSM_CTRL1) Enabled
Word 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Word 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
BLK_EN
VP_EN
VCI_RANGE
VCI_IT_PNTR
Word
0
0
0
1
Field Name
Field Name
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Block Enable. If logic high, enables entry. If a logic low, the cell is discarded.
Reserved
Enables the VPI for lookup processing. If not enabled, cell is discarded, and the CELL_DSC_CNT
counter is incremented.
Determines the maximum VCI value allowed. If cell VCI exceeds maximum, cell is discarded, and
counted as CELL_DSC_CNT.
Significant Bits set at 1. When EN_PROG_BLK_SZ(RSM_CTRL1) is enabled, all 16 baits of the field
can be set by the user.
VCI Index Table Base Pointer. Points to the base of the VCI Index Table for the VPI by appending two
least significant zero bits to form a byte address.
In normal operation, the 10 Most Significant Bits can be set by the user, with the 6 Least
Reserved
Table 5-6
Table and VCI Index Table block size enabled.
(RSM_CTRL1) enabled.
Reserved
Reserved
Table 5-7
Table 5-8
Mindspeed Technologies
describes the VCI Index Table format without the programmable VCC
describes the VCI Index Table format with EN_PROG_BLK_SZ
describes the VCI Index Table Descriptions.
Description/Function
Description/Function
VCC_BLOCK_INDEX
™
5.7 Reassembly Control and Status Structures
VCI_IT_PNTR
VCC_BLOCK_INDEX
VCI_RANGE
5.0 Reassembly Coprocessor
Reserved
5-37