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Ethernet Control and Status registers
392
NS9750 Hardware Reference
Register bit assignment
RX_B Buffer Descriptor Pointer Offset register
Address: A060 0A2C
Register bit assignment
Bits Access Mnemonic Reset Description
D31:11 N/A Reserved N/A N/A
D10:00 R RXAOFF 0x000 Contains an 11-bit byte offset from the start of the pool A
ring. The offset is updated at the end of the RX packet, and
will have the offset to the next buffer descriptor that will
be used. RXAOFF can be used to determine where the
RX_RD logic will put the next packet.
Table 245: RX_A Buffer Descriptor Pointer Offset register
Bits Access Mnemonic Reset Description
D31:11 N/A Reserved N/A N/A
D10:00 R RXBOFF 0x000 Contains an 11-bit byte offset from the start of the pool B
ring. The offset is updated at the end of the RX packet, and
will have the offset to the next buffer descriptor that will
be used. RXBOFF can be used to determine where the
RX_RD logic will put the next packet.
Table 246: RX_B Buffer Descriptor Pointer Offset register
Reserved
RXBOFF
13121110987654321015 14
31 29 28 27 26 25 24 23 22 21 20 19 18 17 1630
Reserved