NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 760 -
Revision V1.30
NUC97
0
T
E
CHNIC
A
L
RE
F
E
RE
N
CE
MA
NUA
L
Host Controller Frame Interval Register (HcFmIntv)
Register
Offset
R/W
Description
Reset Value
HcFmIntv
0x034
R/W
Host Controller Frame Interval Register
0x0000_2EDF
31
30
29
28
27
26
25
24
FIT
FSMPS
23
22
21
20
19
18
17
16
FSMPS
15
14
13
12
11
10
9
8
Reserved
FI
7
6
5
4
3
2
1
0
FI
Bits
Description
[31]
FIT
Frame Interval Toggle
This bit is toggled by HCD when it loads a new value into FrameInterval.
[30: 16]
FSMPS
FS Largest Data Packet
This field specifies a value that is loaded into the Largest Data Packet Counter at the
beginning of each frame.
[15:14]
Reserved
Reserved.
[13:0]
FI
Frame Interval
This field specifies the length of a frame as (bit times - 1). For 12,000 bit times in a frame,
a value of 11,999 is stored here.