NEC Network Controller uPD98502 - Manual (Page 296)

CHAPTER 5 ETHERNET CONTROLLER
296 Preliminary User’s Manual S15543EJ1V0UM
5.2.28 En_TXDPR (Transmit Descriptor Pointer)
Bits Field R/W Default Description
31:2 XMTDP R/W 0 Transmit Descriptor
Please see the Section 5.3.4
1:0 Reserved R/W 0 Reserved for future use. Write 0s.
5.2.29 En_RXCR (Receive Configuration Register)
Bits Field R/W Default Description
31 RXE R/W 0 Receive Enable:
0: Disable
1: Enable
30:19 Reserved R/W 0 Reserved for future use. Write 0s.
18:16 DRBS
[2:0]
R/W 0 DMA Receive Burst Size:
000: 1 Word (4 bytes)
001: 2 Word (8 bytes)
010: 4 Word (16 bytes)
011: 8 Word (32 bytes)
100: 16 Word (64 bytes)
101: 32 Word (128 bytes)
110: 64 Word (256 bytes)
111: Reserved for future use
15:0 Reserved R/W 0 Reserved for future use. Write 0s.