Rainbow Electronics W90P710CDG User Manual
Page 126

W90P710CD/W90P710CDG
- 126 -
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
Reserved
15
14
13
12
11
10
9
8
MIIData
7
6
5
4
3
2
1
0
MIIData
BITS
DESCRIPTIONS
[31:16] Reserved
-
[15:0] MIIData
The MII Management Data is the 16 bits data that will be written into
the registers of external PHY for MII Management write command or
the data from the registers of external PHY for MII Management read
command.
MII Management Control and Address Register (MIIDA)
The EMC provides MII management function to access the control and status registers of the external
PHY. The MIIDA register is used to keep the MII management command information, like the register
address, external PHY address, MDC clocking rate, read/write etc.
REGISTER
ADDRESS
R/W
DESCRIPTION
RESET
VALUE
MIIDA 0xFFF0_3098
R/W
MII Management Control and Address
Register
0x0090_0000
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
MDCCR MDCON
PreSP
BUSY
Write
15
14
13
12
11
10
9
8
Reserved PHYAD
7
6
5
4
3
2
1
0
Reserved PHYRAD