NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 167 -
Revision V1.30
NUC97
0
T
E
CHNIC
A
L
RE
F
E
RE
N
CE
MA
NUA
L
Clock Divider Control Register 3 (CLK_DIVCTL3)
Register
Offset
R/W
Description
Reset Value
CLK_DIVCTL3
0x02C R/W
Clock Divider Control Register 3
0x0000_0000
31
30
29
28
27
26
25
24
Reserved
JPG_N
SENSOR_N
23
22
21
20
19
18
17
16
Reserved
SENSOR_S
SENSOR_SDIV
15
14
13
12
11
10
9
8
eMMC_N
7
6
5
4
3
2
1
0
Reserved
eMMC_S
eMMC_SDIV
Bits
Description
[30:28]
JPG_N
JPEG Engine Clock Divider
This field defines the clock divide number for clock divider to generate the engine clock for
JPEG codec.
The actual clock divide number is (JPG_N + 1). So,
ECLKjpg = HCLK3 / (JPG_N + 1).
[27:24]
SENSOR_N
Sensor Clock Divider
This field defines the clock divide number for clock divider to generate the sensor clock.
The actual clock divide number is (SE 1). So,
SEN_CLK = SEN_SrcCLK / (SE 1).
[20:19]
SENSOR_S
Sensor Clock Source Selection
This field selects which clock is used to be the source of sensor clock.
00 = SEN_SrcCLK is from XIN.
01 = Reserved.
10 = SEN_SrcCLK is from ACLKOut.
11 = SEN_SrcCLK is from UCLKOut.
[18:16]
SENSOR_SDIV
Sensor Source Clock Divider
This field defines the source clock divide number for clock divider of APLL and UPLL output.
This field only takes effect while the SENSOR_S (CLK_DIVCTL3[20:19
]) is 2’b10 (APLL) or
2’b11 (UPLL).
If SENSOR_S (CLK_DIVCTL3[20:19
]) is 2’b10,
ACLKOut = APLLFout ÷ (SENSO 1).
If SENSOR_S (CLK_DIVCTL3[20:19
]) is 2’b11,
UCLKOut = UPLLFout ÷ (SENSO 1).