LKS32AT08x_用户手册_v1.34

LKS32AT08x_用户手册_v1.34 1 Document Convention 1.1 Register Read/Write Permissions RW Read/write, available for software read and write. RO Read-only, software can only read. WO Write-only, software can only write. The default value will be returned when reading this bit. RW1C Read and Write, 1 to Clear 1.2 Abbreviations Word: 32-bit data/instruction. Halfword: 16-bit data/instruction. Byte: 8-bit data. Double word: 64-bit data. ADC: Analog-Digital Converter DAC: Digital-Analog Converter BGP: Bandgap. Bandgap voltage reference WDT: Watch dog LSI: Low Speed Internal Clock, the 32KHz RC oscillator HSI: High Speed Internal Clock, the 4MHz RC oscillator HSE: High Speed External Clock, the 4~8MHz external crystal clock PLL: Phase Lock Loop Clock, the 96MHz PLL clock, which usually used as high-speed system clock POR: Power-On Reset. Reset signal generated when the chip system is powered on NVR: Non-Volatile Register. A storage area in the flash that is different from the main area. IAP (In-Application Programming): IAP means that the Flash of the microcontroller can be reprogrammed while the user program is running. ICP (In-Circuit Programming): ICP means that you can use the JTAG protocol, SWD protocol or bootloader to program the Flash of the microcontroller when the device is installed on the Subscriber Circuit Board. CW: Clockwise 2 Address Space The data bytes are stored in memory in little-endian format. The lowest address byte in a word is considered the least significant byte of the word, and the highest address byte is the most significant byte. All other unallocated on-chip memory and external memory are reserved address spaces. 3 Interrupt The nested vectored interrupt controller is inside the CPU core. When an interrupt event occurs, it will notify the CPU to suspend the execution of the main program, and enter the interrupt service function according to priority setting. It can support up to 32 independent interrupt sources and interrupt vectors, of which 21 interrupt sources are used in the LKS32MC08X series chips, and the last 11 are reserved. It supports up to four interrupt priority levels for programming. 4 Analog Circuit 4.1 Introduction The analog circuit contains the following modules: ➢ Built-in 12bit SAR ADC, simultaneous double sampling, 3Msps sampling and conversion rate, up to 20 analog signal channels ➢ Built-in 4 operational amplifiers. Differential PGA mode is available. ➢ Built-in 2 comparators. Hysteresis mode is available. ➢ Built-in 12bit digital-to-analog converter (DAC) ➢ ± 2 ℃ built-in temperature sensor ➢ 1.2V 0.8% built-in linear regulator The interrelationship between the modules and the control register of each module (see the "Analog Register Table" below for register description) are shown in the fig