NUC100LC1BN Nuvoton Technology Corporation of America, NUC100LC1BN Datasheet - Page 192

• Manufacturer Part Number: NUC100LC1BN
• Description: IC MCU 32BIT 32KB FLASH 48LQFP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro™r

Specifications of NUC100LC1BN

• Core Processor: ARM Cortex-M0
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: I²C, IrDA, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, I²S, LVD, POR, PS2, PWM, WDT
• Number Of I /o: 35
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K 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: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

5.3.3
The system clock has 5 clock sources which were generated from clock generator block. The
clock source switch depends on the register HCLK_S (CLKSEL0[2:0]). The block diagram is
showed in Figure 5-5.
The clock source of SysTick in Cortex-M0 core can use CPU clock or external clock
(SYST_CSR[2]). If using external clock, the SysTick clock (STCLK) has 5 clock sources. The
clock source switch depends on the setting of the register STCLK_S (CLKSEL0[5:3]. The block
diagram is showed in Figure 5-6.
22.1184 MHz
32.768 kHz
PLLFOUT
4~24 MHz
10 kHz
System Clock & SysTick Clock
NuMicro™ NUC100 Series Technical Reference Manual
011
010
001
000
1xx
Figure 5-6 SysTick Clock Control Block Diagram
CPU in Power Down Mode
Figure 5-5 System Clock Block Diagram
HCLK_S (CLKSEL0[2:0])
- 192 -
HCLK_N (CLKDIV[3:0])
1/(HCLK_N+1)
Publication Release Date: Dec. 22, 2010
CPUCLK
HCLK
PCLK
Revision V1.06
CPU
AHB
APB