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EFM8LB1系列单片机开发手册

更新时间:2019-12-18 09:22:03 大小:3M 上传用户:liaowei110查看TA发布的资源 标签:efm8lb1单片机 下载积分:2分 评价赚积分 (如何评价?) 打赏 收藏 评论(1) 举报

资料介绍

本文档是silabs公司的小蜜蜂单片机EFM8LB1XX系列的开发手册,用于物联网、光模块、小型家电控制的单片机。

部分文件列表

文件名 大小
efm8lb1-rm.pdf 3M

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(完整内容请下载后查看)
EFM8 Laser Bee Family  
EFM8LB1 Reference Manual  
The EFM8LB1, part of the Laser Bee family of MCUs, is a per-  
formance line of 8-bit microcontrollers with a comprehensive ana-  
log and digital feature set in small packages.  
KEY FEATURES  
• Pipelined 8-bit 8051 MCU Core with  
72 MHz operating frequency  
These devices offer state-of-the-art performance by integrating 14-bit ADC, internal  
calibrated temperature sensor (±3 °C), and up to four 12-bit DACs into small packages,  
making them ideal for the most stringent analog requirement applications. With an effi-  
cient, pipelined 8051 core with maximum operating frequency at 72 MHz, various com-  
munication interfaces, and four channels of configurable logic, the EFM8LB1 family is  
optimal for many embedded applications.  
• Up to 29 multifunction I/O pins  
• One 14-bit, 900 ksps ADC  
• Up to four 12-bit DACs with  
synchronization and PWM capabilities  
• Two low-current analog comparators with  
built-in reference DACs  
• Internal calibrated temperature sensor  
(±3 °C)  
EFM8LB1 applications include the following:  
• Internal 72 MHz and 24.5 MHz oscillators  
accurate to ±2%  
• Optical network modules  
• Precision instrumentation  
• Industrial control and automation  
• Smart sensors  
• Four channels of Configurable Logic  
• 6-channel PWM / PCA  
• Six 16-bit general-purpose timers  
Core / Memory  
Clock Management  
Energy Management  
High Frequency  
72 MHz RC  
Oscillator  
CIP-51 8051 Core  
(72 MHz)  
External  
Oscillator  
Internal LDO  
Power-On Reset  
Regulator  
Flash Program  
Memory  
(up to 64 KB)  
High Frequency  
24.5 MHz RC  
Oscillator  
RAM Memory  
(up to 4352 bytes)  
Debug Interface  
with C2  
Low Frequency  
RC Oscillator  
Brown-Out Detector  
8-bit SFR bus  
Serial Interfaces  
I/O Ports  
Timers and Triggers  
Analog Interfaces  
Security  
Timers  
PCA/PWM  
0/1/2/5  
16-bit CRC  
External  
Interrupts  
2 x  
ADC  
2 x UART  
SPI  
Pin Reset  
Comparators  
Watchdog  
Timer 3/4  
Timer  
Internal  
Up to 4 x  
High-Speed  
I2C Slave  
General  
Purpose I/O  
I2C / SMBus  
Voltage  
Pin Wakeup  
Voltage DAC  
Reference  
4 x Configurable Logic Units  
Lowest power mode with peripheral operational:  
Normal Idle Suspend  
Snooze  
Shutdown  
silabs.com | Building a more connected world.  
Rev. 0.5  
Table of Contents  
1. System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13  
1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13  
1.2 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14  
1.3 I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14  
1.4 Clocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15  
1.5 Counters/Timers and PWM . . . . . . . . . . . . . . . . . . . . . . . . . .15  
1.6 Communications and Other Digital Peripherals . . . . . . . . . . . . . . . . . . .16  
1.7 Analog. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19  
1.8 Reset Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20  
1.9 Debugging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20  
1.10 Bootloader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21  
2. Memory Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . 23  
2.1 Memory Organization. . . . . . . . . . . . . . . . . . . . . . . . . . . .23  
2.2 Program Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23  
2.3 Data Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23  
2.4 Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25  
2.5 XRAM Control Registers. . . . . . . . . . . . . . . . . . . . . . . . . . .32  
2.5.1 EMI0CN: External Memory Interface Control . . . . . . . . . . . . . . . . . .32  
3. Special Function Registers . . . . . . . . . . . . . . . . . . . . . . . . . 33  
3.1 Special Function Register Access . . . . . . . . . . . . . . . . . . . . . . .33  
3.2 Special Function Register Memory Map . . . . . . . . . . . . . . . . . . . . .35  
3.3 SFR Access Control Registers. . . . . . . . . . . . . . . . . . . . . . . . .45  
3.3.1 SFRPAGE: SFR Page . . . . . . . . . . . . . . . . . . . . . . . . . .45  
3.3.2 SFRPGCN: SFR Page Control . . . . . . . . . . . . . . . . . . . . . . .46  
3.3.3 SFRSTACK: SFR Page Stack . . . . . . . . . . . . . . . . . . . . . . .46  
4. Flash Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47  
4.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47  
4.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52  
4.3 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . .53  
4.3.1 Security Options . . . . . . . . . . . . . . . . . . . . . . . . . . . .53  
4.3.2 Programming the Flash Memory . . . . . . . . . . . . . . . . . . . . . .54  
4.3.3 Flash Write and Erase Precautions. . . . . . . . . . . . . . . . . . . . . .55  
4.4 Flash Control Registers . . . . . . . . . . . . . . . . . . . . . . . . . . .56  
4.4.1 PSCTL: Program Store Control . . . . . . . . . . . . . . . . . . . . . . .56  
4.4.2 FLKEY: Flash Lock and Key . . . . . . . . . . . . . . . . . . . . . . . .57  
5. Device Identification  
. . . . . . . . . . . . . . . . . . . . . . . . . . .58  
5.1 Device Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . .58  
silabs.com | Building a more connected world.  
Rev. 0.5 | 2  

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