NUC120VE3AN Nuvoton Technology Corporation of America, NUC120VE3AN Datasheet - Page 206

• Manufacturer Part Number: NUC120VE3AN
• Description: IC MCU 32BIT 128KB FLASH 100LQFP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro™r

Specifications of NUC120VE3AN

• Core Processor: ARM Cortex-M0
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: I²C, IrDA, SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, I²S, LVD, POR, PS2, PWM, WDT
• Number Of I /o: 76
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Data Converters: A/D 8x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Clock Source Select Control Register 1（CLKSEL1）
Before clock switching, the related clock sources (pre-select and new-select) must be turned on.
Register
CLKSEL1
Bits
[31:30]
[29:28]
[27:26]
[25:24]
Reserved
Reserved
31
23
15
7
PWM23_S
NuMicro™ NUC100 Series Technical Reference Manual
Offset
CLK_BA+0x14
Descriptions
PWM23_S
PWM01_S
CAN_S
UART_S
30
22
14
6
Reserved
TMR3_S
TMR1_S
R/W
R/W
PWM2 and PWM3 clock source select
PWM2 and PWM3 uses 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
PWM0 and PWM1 clock source select
PWM0 and PWM1 uses 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
CAN clock source select
00 = Clock source from external 4~24 MHz crystal clock
01 = Clock source from PLL clock
1x = Clock source from internal 22.1184 MHz oscillator clock
UART clock source select
00 = Clock source from external 4~24 MHz crystal clock
01 = Clock source from PLL clock
29
21
13
5
PWM01_S
Description
Clock Source Select Control Register 1
28
20
12
4
- 206 -
Reserved
Reserved
27
19
11
3
Publication Release Date: Dec. 22, 2010
CAN_S
ADC_S
26
18
10
2
TMR2_S
TMR0_S
25
17
9
1
UART_S
WDT_S
Revision V1.06
Reset Value
0xFFFF_FFFF
24
16
8
0