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302 Software Developer’s Manual
Register Descriptions
13.4.25 Receive Descriptor Base Address Low
RDBAL (02800h;R/W)
This register contains the lower bits of the 64-bit descriptor base address. The four low-order
register bits are always ignored. The Receive Descriptor Base Address must point to a 16-byte
aligned block of data.
Table 13-70. RDBAL Register Bit Description
13.4.26 Receive Descriptor Base Address High
RDBAH (02804h; R/W)
This register contains the upper 32 bits of the 64-bit Descriptor Base Address.
Table 13-71. RDBAH Register Bit Description
31 43 0
RDBAL 0
Field Bit(s)
Initial
Value
Description
0 3:0 0b Ignored on writes. Returns 0b on reads.
RDBAL 31:4 X Receive Descriptor Base Address Low.
31 0
RDBAH
Field Bit(s)
Initial
Value
Description
RDBAH 31:0 X Receive Descriptor Base Address [63:32]