cn8236 Mindspeed Technologies, cn8236 Datasheet - Page 118

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

5.0 Reassembly Coprocessor
5.2 Reassembly Functional Description
Figure 5-6. VPI Index Table with Multiple Ports
5-8
RSM_TBASE(RSM_ITB)
LECID/PMOAM Tables
VPI/PORT_ID Lookup
(Multi-phy Support)
5.2.2.5 Variable
In order to support multi-phy operation and/or reduce memory requirements of
the VPI Index table, a new Variable VPI/PORT_ID lookup mechanism has been
implemented. This mechanism is enabled by setting
RSM_CTRL1(EN_VPI_SIZE) = 1. When enabled, a new register called
VPI_SIZE determines the maximum allowable VPI on each port in binary
increments up to 4095. In addition, the VPI can be turned off.
the VPI INDEX table with CONFIG1(NUM_PORTS) = 4 and
VPI_SIZE = 0x000b_a09a. For all ports
VPI_SIZE entry should be set to 0x0 in order to turn it off.
Mindspeed Technologies
1024 entries
1024 entries
2048 entries
512 entries
ATM ServiceSAR Plus with xBR Traffic Management
™
PORT_ID = 0 (MAX_VPI = 1023)
PORT_ID = 1 (MAX_VPI = 511)
PORT_ID = 2 (turned off)
PORT_ID = 3 (MAX_VPI = 1023)
PORT_ID = 4 (MAX_VPI = 2047)
CONFIG1(NUM_PORTS), their
Figure 5-6
28236-DSH-001-B
CN8236
shows
8236_024