NUMICRO-SDK Nuvoton Technology Corporation of America, NUMICRO-SDK Datasheet - Page 209

• Manufacturer Part Number: NUMICRO-SDK
• Description: KIT EVAUATION NUC100/120/130/140
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro™r
• Type: MCUr

Specifications of NUMICRO-SDK

• Contents: Board, Cable, CD, Nu-Link
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: NUC100, NUC120, NUC130, NUC140

Clock Source Select Control Register 2 （CLKSEL2）
Before clock switching, the related clock sources (pre-select and new-select) must be turned on.
Register
CLKSEL2
Note: [1] default value is 0x0000_00F0 in Medium Density; default value is 0x0000_00FF in Low Density
Bits
[31:8]
[7:6]
[5:4]
[3:2]
[1:0]
31
23
15
7
PWM67_S
NuMicro™ NUC100 Series Technical Reference Manual
Offset
CLK_BA+0x1C
Descriptions
Reserved
PWM67_S
PWM45_S
FRQDIV_S
I2S_S
30
22
14
6
R/W
R/W
Reserved
PWM6 and PWM7 Clock Source Select (Medium Density Only)
PWM6 and PWM7 used the same Engine clock source, both of them use the same
prescaler
00 = Clock source from external 4~24 MHz crystal clock
01 = Clock source from external 32.768 kHz crystal clock
10 = Clock source from HCLK
11 = Clock source from internal 22.1184 MHz oscillator clock
PWM4 and PWM5 Clock Source Select (Medium Density Only)
PWM4 and PWM5 used the same Engine clock source, both of them use the same
prescaler
00 = Clock source from external 4~24 MHz crystal clock
01 = Clock source from external 32.768 kHz crystal clock
10 = Clock source from HCLK
11 = Clock source from internal 22.1184 MHz oscillator clock
Clock Divider Clock Source Select
00 = Clock source from external 4~24 MHz crystal clock
01 = Clock source from external 32.768 kHz crystal clock
10 = Clock source from HCLK
11 = Clock source from internal 22.1184 MHz oscillator clock
I
00 = Clock source from external 4~24 MHz crystal clock
2
S Clock Source Select
29
21
13
5
PWM45_S
Description
Clock Source Select Control Register 2
28
20
12
4
- 209 -
Reserved
Reserved
Reserved
27
19
11
3
FRQDIV_S
Publication Release Date: Oct 22, 2010
26
18
10
2
25
17
9
1
Revision V1.06
I2S_S
Reset Value
0x0000_00F0
0x0000_00FF
24
16
8
0
[1]