beautypg.com

Rainbow Electronics W90N745CDG User Manual

Page 189

background image

W90N745CD/W90N745CDG

- 184 -

BITS

DESCRIPTION

[31:14] Reserved Reserved. Read/Write 0's

[13:0] PERST

PeriodicStart

This field contains a value used by the List Processor to determine where in a
frame the Periodic List processing must begin.

Host Controller Low Speed Threshold Register

REGISTER ADDRESS

R/W

DESCRIPTION

RESET

VALUE

HcLSThreshold 0xFFF0_5044

R/W

Host Controller Low Speed Threshold
Register

0x0000_0628

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

Reserved LsThreshold

7

6

5

4

3

2

1

0

LsTreshold

BITS

DESCRIPTION

[31:12]

Reserved

Rsvd. Read/Write 0's

[11:0] LsTreshold

LSThreshold

This field contains a value used by the Frame Management block to determine
whether or not a low speed transaction can be started in the current frame.

Host Controller Root Hub Descriptor A Register

This register is only reset by a power-on reset. It is written during system initialization to configure the
Root Hub. This bit should not be written during normal operation.

REGISTER ADDRESS

R/W

DESCRIPTION

RESET
VALUE

HcRhDescriptorA 0xFFF0_5048

R/W

Host Controller Root Hub Descriptor A
Register

0x0100.0002