TXC-05802AIPQ Transwitch Corporation, TXC-05802AIPQ Datasheet - Page 32

• Manufacturer Part Number: TXC-05802AIPQ
• Manufacturer: Transwitch Corporation

Specifications of TXC-05802AIPQ

• Operating Supply Voltage (typ): 3.3/5V
• Operating Temperature Classification: Industrial
• Package Type: PQFP
• Mounting: Surface Mount
• Pin Count: 208
• Lead Free Status / Rohs Status: Not Compliant

MULTICAST NUMBER MEMORY
A multicast address control cell or multicast address data cell can be sent to a number of CUBIT- Pro s, and a
single CUBIT- Pro can receive cells with a number of different addresses. This is controlled by the setup of the
Multicast Number Memory (addresses E0H-FFH in the CUBIT- Pro memory map), which is a block of 32 bytes.
Each of the 256 bits in the block maps to one multicast address, as shown in Figure 25. When a bit is set to 1,
the CUBIT- Pro is enabled to receive the corresponding multicast address cell. Each CUBIT- Pro can be set to
receive any or all of the 256 possible multicast addresses.
Note: The M Field refers to the CellBus Bus Routing Header for Multicast Address cells (see Figure 5).
FF
FE
FD
E2
E1
E0
MSB
1 in this bit location enables multicast address 255 (M Field = FFH)
1 in this bit location enables multicast address 7 (M Field = 07H)
Bit of Byte
Figure 25. Multicast Number Memory
LSB
1 in this bit location enables multicast address 248 (M Field = F8H)
1 in this bit location enables multicast address 0 (M Field = 00H)
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Ed. 3, November 1999
TXC-05802
CUBIT- Pro
TXC-05802-MB