Rainbow Electronics W90N745CDG User Manual
Page 121
W90N745CD/W90N745CDG
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31
30
29
28
27
26
25
24
RXDLSA
23
22
21
20
19
18
17
16
RXDLSA
15
14
13
12
11
10
9
8
RXDLSA
7
6
5
4
3
2
1
0
RXDLSA
BITS
DESCRIPTIONS
[31:0] RXDLSA
The RXDLSA(Receive Descriptor Link-List Start Address) keeps
the start address of receive descriptor link-list. If the S/W enables the
bit RXON of MCMDR register, the content of RXDLSA will be loaded
into the current receive descriptor start address register (CRXDSA).
The RXDLSA doesn’t be updated by EMC. During the operation,
EMC will ignore the bits [1:0] of RXDLSA. This means that each Rx
descriptor always must locate at word boundary memory address.
MAC Command Register (MCMDR)
The MCMDR provides the control information for EMC. Some command settings affect both frame
transmission and reception, such as bit FDUP, the full/half duplex mode selection, or bit OPMOD, the
100/10M bps mode selection. Some command settings control frame transmission and reception
separately, likes bit TXON and RXON.
REGISTER
ADDRESS
R/W
DESCRIPTION
RESET VALUE
MCMDR
0xFFF0_3090
R/W
MAC Command Register
0x0000_0000
31
30
29
28
27
26
25
24
Reserved SWR
23
22
21
20
19
18
17
16
Reserved
LBK OPMOD
EnMDC FDUP EnSQE SDPZ
15
14
13
12
11
10
9
8
Reserved NDEF
TXON
7
6
5
4
3
2
1
0
Reserved SPCRC
AEP
ACP
ARP
ALP RXON