SN32F100 Series
32-Bit Cortex-M0 Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 16
Version 1.9
1.3 CLOCK GENERATION BLOCK DIAGRAM
XTALOUT
XTALIN
External High
speed Crystal
oscillator
1MHz~25MHz
CLKOUT
PLL
1, 2, … , 32
IHRC
12MHz
ILRC
16KHz
PLLCLKSEL
IHRC
ILRC
PLLCLKout
SYSCLK
SYSCLKSEL
CLKOUTSEL
EHS
SSP0
Clock Prescaler
/1,2,4,8,16
WDTCLKSEL
WDT
Clock Prescaler
/1, 2, 4, 8, 16, 32
WDT_PCLK
SSP0_PCLK
HCLK
AHB clock for SSP0
SSP0CLKEN
WDT
register block
WDT
clock source
SSP0
register block
SSP0
clock source
AHB clock for WDT
AHB clock for AHB to APB bridge, to AHB
matrix, to Cortex-M0 FCLK, HCLK, and
System Timer ,to SYS, and to PMU
AHB clock for GPIO
GPIOCLKEN
LXTALOUT
LXTALIN
External Low
Speed Crystal
oscillator
32.768KHz
ELS
GPIO block
AHB
Prescaler
/1,2,4,…,512
PLLCLKout
RTCSEL
ILRC
ELS
/128
RTC_PCLK
RTC
register block
RTC
clock source
AHB clock for RTC
RTCCLKEN
SSP1
Clock Prescaler
/1,2,4,8,16
SSP1_PCLK
AHB clock for SSP1
SSP1CLKEN
SSP1
register block
SSP1
clock source
Comparator
Clock Prescaler
/1,2,4,8,16
CMP_PCLK
AHB clock for
Comparator
CMPCLKEN
Comparator
register block
Comparator
clock source
AHB clock for ADC
ADCCLKEN
ADC
register block
ADC
clock source
I2C0
Clock Prescaler
/1,2,4,8,16
I2C0_PCLK
AHB clock for ADC
I2C0CLKEN
I2C0
register block
I2C0
clock source
CT32B1
Clock Prescaler
/1,2,4,8,16
CT32B1_PCLK
AHB clock for CT32B1
CT32B1CLKEN
CT32B1
register block
CT32B1
clock source
CT32B0
Clock Prescaler
/1,2,4,8,16
CT32B0_PCLK
AHB clock for CT32B0
CT32B0CLKEN
CT32B0
register block
CT32B0
clock source
CT16B1
Clock Prescaler
/1,2,4,8,16
CT16B1_PCLK
AHB clock for CT16B1
CT16B1CLKEN
CT16B1
register block
CT16B1
clock source
CT16B0
Clock Prescaler
/1,2,4,8,16
CT16B0_PCLK
AHB clock for CT16B0
CT16B0CLKEN
CT16B0
register block
CT16B0
clock source
USART1
Clock Prescaler
/1,2,4,8,16
USART1_PCLK
AHB clock for USART1
USART1CLKEN
USART1
register block
USART1
clock source
USART0
Clock Prescaler
/1,2,4,8,16
USART0_PCLK
AHB clock for USART0
USART0CLKEN
USART0
register block
USART0
clock source
AHB clock for SRAM
SRAM block
AHB clock for FLASH
FLASH block
CLKOUT
Prescaler
/1,2,4,…,512
WDTCLKEN
I2C1
Clock Prescaler
/1,2,4,8,16
I2C1_PCLK
AHB clock for I2C1
I2C1CLKEN
I2C1
register block
I2C1
clock source
AHB clock for DAC
DACCLKEN
DAC
register block
DAC
clock source
I2S
Clock Prescaler
/1,2,4,8,16
I2S_PCLK
AHB clock for I2S
I2SCLKEN
I2S
register block
I2S
clock source
AUXTALOUT
AUXTALIN
External High
speed Crystal
oscillator
16.384MHz
Audio Clock
Prescaler
/1,2,4,8,16
MCLKSEL
MCLK
AUCLKout
AUCLKout
Содержание SN32F107
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