
M451
May. 4, 2018
Page
831
of
1006
Rev.2.08
M4
51
S
E
RI
E
S
T
E
CH
NICA
L RE
F
E
R
E
NC
E
M
A
NU
A
L
Host Controller Frame Interval Register (HcFmInterval)
Register
Offset
R/W
Description
Reset Value
HCFMINTERVAL
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 Host Controller Driver when it loads a new value into FI
(HcFmInterval[13:0]).
0 = Host Controller Driver didn’t load new value into FI (HcFmInterval[13:0]).
1 = Host Controller Driver loads a new value into FI (HcFmInterval[13:0]).
[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.
Содержание ARM Cortex NuMicro M451 Series
Страница 301: ...M451 May 4 2018 Page 301 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL...
Страница 324: ...M451 May 4 2018 Page 324 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL Figure 6 4 18 Checksum Calculation Flow...
Страница 355: ...M451 May 4 2018 Page 355 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL 2 0 Reserved Reserved...
Страница 625: ...M451 May 4 2018 Page 625 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL 00 5 bits 01 6 bits 10 7 bits 11 8 bits...
Страница 721: ...M451 May 4 2018 Page 721 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL the SCL line 1 0 Reserved Reserved...
Страница 1001: ...M451 May 4 2018 Page 1001 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL LQFP 64L 10x10x1 4 mm footprint 2 0 mm 9 2...
Страница 1002: ...M451 May 4 2018 Page 1002 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL LQFP 64L 7x7x1 4 mm footprint 2 0 mm 9 3...
Страница 1003: ...M451 May 4 2018 Page 1003 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL LQFP 48L 7x7x1 4mm footprint 2 0mm 9 4...