C8051F530的datasheet_c8051f530datasheet资源-CSDN文库

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根据提供的文档信息，我们可以深入探讨C8051F530这款微控制器的主要特性及其在实际应用中的价值。此款微控制器属于Silicon Laboratories公司生产的C8051F52x/F53x系列，是专为需要高性能模拟与数字外设集成的应用而设计的。下面将对文档中提及的关键特性进行详细解析。 ### 一、概述 C8051F530是一款高度集成的混合信号系统级芯片(SoC)，内置了多种模拟与数字外设，适用于汽车和其他高精度测量领域。它具有强大的处理能力和丰富的外围资源，支持多种电源电压范围（2.0V至5.25V），并具备灵活的时钟源选择功能。 ### 二、模拟外设 #### 1. 12位ADC - **最高采样率**：可达200ksps（每秒20万次采样）。 - **外部输入**：最多可配置6/16个外部输入通道。 - **数据依赖窗口中断发生器**：支持基于数据变化的中断触发机制。 - **内置温度传感器**：用于监测芯片内部温度。 #### 2. 比较器 - **可编程迟滞和响应时间**：允许用户自定义比较器的灵敏度。 - **可用作唤醒或复位源**：可以配置为系统唤醒或复位的触发条件。 - **低功耗设计**：即使在低功耗模式下也能保持准确的比较功能。 #### 3. 上电复位/欠压检测 - **上电复位(POR)**：确保系统上电后处于安全状态。 - **欠压检测(BOD)**：当电源电压低于预设阈值时自动复位系统，防止异常工作。 #### 4. 电压参考 - **提供1.5V和2.2V参考电压**：可通过软件编程选择，满足不同应用场景的需求。 ### 三、片上调试电路 - **非侵入式调试**：无需使用外部仿真器即可实现全速调试。 - **断点和单步执行**：支持在运行过程中设置断点以及单步执行指令。 - **内存和寄存器读写**：可以在调试过程中查看或修改内存和寄存器的内容。 - **完整的开发工具包**：包括编译器、IDE等，方便用户快速上手开发。 ### 四、电源管理 - **宽电压范围**：支持2.0V至5.25V的工作电压。 - **内置低压差稳压器(LDO)**：为关键电路提供稳定的供电。 ### 五、高速8051微处理器核心 - **流水线指令架构**：提高了指令执行效率。 - **高达25MIPS的性能**：配合25MHz系统时钟，提供出色的处理速度。 - **扩展中断处理器**：增强了系统的实时性和响应能力。 ### 六、存储器 - **8/4/2kB ISP Flash**：支持在系统编程(ISP)，方便固件更新。 - **256B内部数据RAM**：为程序运行提供足够的存储空间。 ### 七、数字外设 #### 1. I/O端口 - **16/6个数字I/O**：支持推挽或开漏输出方式，并兼容5V信号。 - **硬件SPI、UART串行接口**：支持标准通信协议。 - **LIN 2.1控制器**：无需外部晶体即可支持LIN总线通信。 - **三个通用16位计数器/定时器**：可用于多种计数和定时任务。 - **带捕获/比较模块的可编程16位计数器/定时器阵列**：支持复杂的时间控制需求。 #### 2. 时钟源 - **24.5MHz高精度内部振荡器**：精度±0.5%，适用于UART和LIN主控操作。 - **外部振荡器**：支持晶体、RC振荡器、外部时钟输入等多种类型。 - **动态时钟切换**：可在运行时动态切换不同的时钟源。 ### 八、封装形式 - **10-Pin DFN (3x3mm)** - **20-pin QFN (4x4mm)** - **20-pin TSSOP** ### 九、汽车级认证 - **温度范围**：-40℃至+125℃。 - **符合AEC-Q100标准**：表明该芯片经过严格的汽车级测试和验证。通过以上介绍可以看出，C8051F530是一款集成了高性能模拟和数字外设的微控制器，非常适合需要高精度测量和控制的应用场景，如汽车电子、工业自动化等领域。其丰富的功能和优秀的性能使其成为此类应用的理想选择。

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8/4/2 kB ISP Flash MCU Family

C8051F52x/F53x

Analog Peripherals

- 12-Bit ADC

• Programmable throughput up to 200 ksps

• Up to 6/16 external inputs

• Data dependent windowed interrupt generator

• Built-in temperature sensor

- Comparator

• Programmable hysteresis and response time

• Configurable as wake-up or reset source

• Low current

- POR/Brownout Detector

- Voltage Reference—1.5 and 2.2 V 

(programmable)

On-Chip Debug

On-chip debug circuitry facilitates full-speed, non-

intrusive in-system debug (No emulator required)

- Provides breakpoints, single stepping

- Inspect/modify memory and registers

- Complete development kit

Supply Voltage 2.0 to 5.25 V

Built-in LDO regulator

High-Speed 8051 µC Core

Pipelined instruction architecture; executes 70% of

instructions in 1 or 2 system clocks

- Up to 25 MIPS throughput with

25 MHz system clock

- Expanded interrupt handler

Memory

8/4/2 kB Flash; In-system byte programmable in

512 byte sectors

- 256 bytes internal data RAM

Digital Peripherals

16/6 port I/O; push-pull or open-drain, 5 V tolerant

- Hardware SPI™, and UART serial port

- LIN 2.1 Controller (Master and Slave capable); no

crystal required

- Three general purpose 16-bit counter/timers

- Programmable 16-bit counter/timer array with three

capture/compare modules, WDT

Clock Sources

Internal oscillators: 24.5 MHz ±0.5% accuracy sup-

ports UART and LIN-Master operation

- External oscillator: Crystal, RC, C, or Clock

(1 or 2 pin modes)

- Can switch between clock sources on-the-fly

Packages

10-Pin DFN (3 x 3 mm)

- 20-pin QFN (4 x 4 mm)

- 20-pin TSSOP

Automotive Qualified

Temperature Range: –40 to +125 °C

Compliant to AEC-Q100

ANALOG

PERIPHERALS

12-bit

200 ksps

ADC

8/4/2 kB

ISP FLASH

256 B SRAM

POR

DEBUG

CIRCUITRY

FLEXIBLE

INTERRUPTS

8051 CPU

(25 MIPS)

TEMP

SENSOR

DIGITAL I/O

24.5 MHz High Precision (±0.5%) Internal Oscillator

HIGH-SPEED CONTROLLER CORE

CROSSBAR

VOLTAGE

COMPARATOR

WDT

UART

PCA

Timer 0

Timer 1

Timer 2

Port 0

SPI

Port 1

VREGVREF

LIN

Rev. 1.4 3

C8051F52x/F53x

Table of Contents

1. System Overview ..................................................................................................... 13

1.1. Ordering Information.......................................................................................... 14

1.2. CIP-51™ Microcontroller ................................................................................... 18

1.2.1. Fully 8051 Compatible Instruction Set ...................................................... 18

1.2.2. Improved Throughput................................................................................ 18

1.2.3. Additional Features ................................................................................... 18

1.2.4. On-Chip Debug Circuitry........................................................................... 18

1.3. On-Chip Memory ............................................................................................... 20

1.4. Operating Modes............................................................................................... 21

1.5. 12-Bit Analog to Digital Converter ..................................................................... 22

1.6. Programmable Comparator............................................................................... 23

1.7. Voltage Regulator.............................................................................................. 23

1.8. Serial Port.......................................................................................................... 23

1.9. Port Input/Output ............................................................................................... 24

2. Electrical Characteristics........................................................................................ 25

2.1. Absolute Maximum Ratings............................................................................... 25

2.2. Electrical Characteristics ................................................................................... 26

3. Pinout and Package Definitions ............................................................................. 35

4. 12-Bit ADC (ADC0)................................................................................................... 52

4.1. Analog Multiplexer............................................................................................. 52

4.2. Temperature Sensor.......................................................................................... 53

4.3. ADC0 Operation ................................................................................................ 54

4.3.1. Starting a Conversion................................................................................ 54

4.3.2. Tracking Modes......................................................................................... 54

4.3.3. Timing ....................................................................................................... 55

4.3.4. Burst Mode................................................................................................ 57

4.3.5. Output Conversion Code........................................................................... 59

4.3.6. Settling Time Requirements...................................................................... 60

4.4. Selectable Gain ................................................................................................. 60

4.4.1. Calculating the Gain Value........................................................................ 61

4.4.2. Setting the Gain Value .............................................................................. 62

4.5. Programmable Window Detector....................................................................... 69

4.5.1. Window Detector In Single-Ended Mode

.................................................. 71

5. Voltage Reference.................................................................................................... 72

6. Voltage Regulator (REG0)....................................................................................... 74

7. Comparator ............................................................................................................. 76

8. CIP-51 Microcontroller............................................................................................. 81

8.1. Instruction Set.................................................................................................... 82

8.1.1. Instruction and CPU Timing ...................................................................... 82

8.1.2. MOVX Instruction and Program Memory .................................................. 83

8.2. Register Descriptions ........................................................................................ 86

8.3. Power Management Modes............................................................................... 89

8.3.1. Idle Mode .................................................................................................. 90

C8051F52x/F53x

4 Rev. 1.4

8.3.2. Stop Mode................................................................................................. 90

8.3.3. Suspend Mode.......................................................................................... 90

9. Memory Organization and SFRs............................................................................. 92

9.1. Program Memory............................................................................................... 92

9.2. Data Memory..................................................................................................... 93

9.3. General Purpose Registers ............................................................................... 93

9.4. Bit Addressable Locations................................................................................. 93

9.5. Stack ............................................................................................................ 93

9.6. Special Function Registers................................................................................ 93

10. Interrupt Handler.................................................................................................... 98

10.1. MCU Interrupt Sources and Vectors................................................................ 98

10.2. Interrupt Priorities ............................................................................................ 98

10.3. Interrupt Latency.............................................................................................. 98

10.4. Interrupt Register Descriptions...................................................................... 100

10.5. External Interrupts ......................................................................................... 104

11. Reset Sources...................................................................................................... 106

11.1. Power-On Reset............................................................................................ 107

11.2. Power-Fail Reset / VDD Monitors (VDDMON0 and VDDMON1) .................. 108

11.2.1. VDD Monitor Thresholds and Minimum VDD........................................ 108

11.3. External Reset............................................................................................... 110

11.4. Missing Clock Detector Reset ....................................................................... 110

11.5. Comparator Reset ......................................................................................... 110

11.6. PCA Watchdog Timer Reset ......................................................................... 110

11.7. Flash Error Reset .......................................................................................... 110

11.8. Software Reset.............................................................................................. 111

12. Flash Memory....................................................................................................... 113

12.1. Programming The Flash Memory.................................................................. 113

12.1.1. Flash Lock and Key Functions.............................................................. 113

12.1.2. Flash Erase Procedure ......................................................................... 114

12.1.3. Flash Write Procedure .......................................................................... 114

12.2. Flash Write and Erase Guidelines................................................................. 115

12.2.1. V

Maintenance and the V

monitor ................................................ 115

12.2.2. PSWE Maintenance.............................................................................. 115

12.2.3. System Clock ........................................................................................ 116

12.3. Non-volatile Data Storage ............................................................................. 117

12.4. Security Options ............................................................................................ 117

13. Port Input/Output ................................................................................................. 120

13.1. Priority Crossbar Decoder ............................................................................. 122

13.2. Port I/O Initialization ...................................................................................... 126

13.3. General Purpose Port I/O.............................................................................. 128

14. Oscillators ............................................................................................................ 135

14.1. Programmable Internal Oscillator.................................................................. 135

14.1.1. Internal Oscillator Suspend Mode......................................................... 136

14.2. External Oscillator Drive Circuit..................................................................... 139

14.2.1. Clocking Timers Directly Through the External Oscillator..................... 139

Rev. 1.4 5

C8051F52x/F53x

14.2.2. External Crystal Example...................................................................... 139

14.2.3. External RC Example............................................................................ 141

14.2.4. External Capacitor Example.................................................................. 141

14.3. System Clock Selection................................................................................. 143

15. UART0................................................................................................................... 144

15.1. Enhanced Baud Rate Generation.................................................................. 145

15.2. Operational Modes ........................................................................................ 146

15.2.1. 8-Bit UART............................................................................................ 146

15.2.2. 9-Bit UART............................................................................................ 147

15.3. Multiprocessor Communications ................................................................... 148

16. Enhanced Serial Peripheral Interface (SPI0) ..................................................... 151

16.1. Signal Descriptions........................................................................................ 152

16.1.1. Master Out, Slave In (MOSI)................................................................. 152

16.1.2. Master In, Slave Out (MISO)................................................................. 152

16.1.3. Serial Clock (SCK) ................................................................................ 152

16.1.4. Slave Select (NSS) ............................................................................... 152

16.2. SPI0 Master Mode Operation........................................................................ 153

16.3. SPI0 Slave Mode Operation.......................................................................... 154

16.4. SPI0 Interrupt Sources .................................................................................. 155

16.5. Serial Clock Timing........................................................................................ 156

16.6. SPI Special Function Registers..................................................................... 156

17. LIN (C8051F520/0A/3/3A/6/6A and C8051F530/0A/3/3A/6/6A) .......................... 164

17.1. Software Interface with the LIN Peripheral.................................................... 165

17.2. LIN Interface Setup and Operation................................................................ 165

17.2.1. Mode Definition ..................................................................................... 165

17.2.2. Baud Rate Options: Manual or Autobaud ............................................. 165

17.2.3. Baud Rate Calculations—Manual Mode ............................................... 165

17.2.4. Baud Rate Calculations—Automatic Mode........................................... 168

17.3. LIN Master Mode Operation .......................................................................... 169

17.4. LIN Slave Mode Operation ............................................................................ 170

17.5. Sleep Mode and Wake-Up ............................................................................ 171

17.6. Error Detection and Handling ........................................................................ 171

17.7. LIN Registers................................................................................................. 172

17.7.1. LIN Direct Access SFR Registers Definition ......................................... 172

17.7.2. LIN Indirect Access SFR Regis

ters Definition....................................... 174

18. Timers ................................................................................................................... 182

18.1. Timer 0 and Timer 1 ...................................................................................... 182

18.1.1. Mode 0: 13-bit Counter/Timer ............................................................... 182

18.1.2. Mode 1: 16-bit Counter/Timer ............................................................... 184

18.1.3. Mode 2: 8-bit Counter/Timer with Auto-Reload..................................... 184

18.1.4. Mode 3: Two 8-bit Counter/Timers (Timer 0 Only)................................ 185

18.2. Timer 2 .......................................................................................................... 190

18.2.1. 16-bit Timer with Auto-Reload............................................................... 190

18.2.2. 8-bit Timers with Auto-Reload............................................................... 191

18.2.3. External Capture Mode ......................................................................... 192

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