Register bit assignment – Digi NS9750 User Manual

Page 760

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U S B h o s t b l o c k r e g i s t e r s

7 3 6

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

Register bit assignment

Bits

Access

Mnemonic

Reset

Description

D31

R/W

MIE

0b

Master interrupt enable

0

Ignored by the host controller

1

Enables interrupt generation due to events specified
in the other bits of this register.

D30

R/W

OC

0b

Ownership change

0

Ignore

1

Enable interrupt generation due to ownership change.

D29:07

N/A

Reserved

N/A

N/A

D06

R/W

RHSC

0b

Root hub status change

0

Ignore

1

Enable interrupt generation due to root hub status
change.

D05

R/W

FNO

0b

Frame number overflow

0

Ignore

1

Enable interrupt generation due to frame number
overflow.

D04

R/W

UE

0b

Unrecoverable error

0

Ignore

1

Enable interrupt generation due to unrecoverable
error.

D03

R/W

RD

0b

Resume detect

0

Ignore

1

Enable interrupt generation due to resume detect.

Table 427: HcInterruptEnable register

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

RD

SF

WDH

SO

MIE

OC

Reserved

Reserved

RHSC

FNO

UE

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