Mii management address register, Register bit assignment – Digi NS9750 User Manual
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E t h e r n e t C o m m u n i c a t i o n M o d u l e
MII Management Address register
Address: A060 0428
Register bit assignment
D01
R/W
SCAN
0
Automatically scan for read data
Set to 1 to have the MII Management module perform
read cycles continuously. This is useful for
monitoring link fail, for example.
Note:
SCAN must transition from a 0 to a 1 to
initiate the continuous read cycles.
D00
R/W
READ
0
Single scan for read data
Set to 1 to have the MII Management module perform
a single read cycle. The read data is returned in the
MII Management Read Data register after the BUSY
bit in the MII Management Indicators register has
returned to a value of 0.
Note:
READ must transition from a 0 to a 1 to
initiate a single read cycle.
Bits
Access
Mnemonic
Reset
Description
Table 219: MII Management Command register
Bits
Access
Mnemonic
Reset
Description
D31:13
N/A
Reserved
N/A
N/A
Table 220: MII Management Address register
Reserved
13
12
11
10
9
8
7
6
5
4
3
2
1
0
15
14
31
29
28
27
26
25
24
23
22
21
20
19
18
17
16
30
DADR
Reserved
Reserved
RADR