Phy support register, Register bit assignment – Digi NS9750 User Manual

Page 382

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E t h e r n e t C o n t r o l a n d S t a t u s r e g i s t e r s

3 5 8

N S 9 7 5 0 H a r d w a r e R e f e r e n c e

PHY Support register

Address: A060 0418

Register bit assignment

Bits

Access

Mnemonic

Reset

Description

D31:16

N/A

Reserved

N/A

N/A

D15

R/W

RPERMII

0

Reset RMII module

Set to 1 to reset the RMII PHY interface module logic.

D14:09

R/W

Not used

0x08

Always write 0x08.

D08

R/W

SPEED

0

Speed select (RMII)

0

RMII PHY interface logic is configured for 10
Mbps

1

RMII PHY interface logic is configured for 100
Mbps

D07:00

R?W

Not used

0x00

Always write 0x00.

Table 217: PHY Support 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

RPER

MII

Not used

SPEED

Not used

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