收藏本站
C8051T610/1/2/3/4/5/6/7
25.2.2. 8-bit Timers with Auto-Reload
When T2SPLIT is set, Timer 2 operates as two 8-bit timers (TMR2H and TMR2L). Both 8-bit timers oper-
ate in auto-reload mode as shown in Figure 25.5. TMR2RLL holds the reload value for TMR2L; TMR2RLH
holds the reload value for TMR2H. The TR2 bit in TMR2CN handles the run control for TMR2H. TMR2L is
always running when configured for 8-bit Mode.
Each 8-bit timer may be configured to use SYSCLK, SYSCLK divided by 12, or the external oscillator clock
source divided by 8. The Timer 2 Clock Select bits (T2MH and T2ML in CKCON) select either SYSCLK or
the clock defined by the Timer 2 External Clock Select bit (T2XCLK in TMR2CN), as follows:
T2MH
0
0
1
T2XCLK
0
1
X
TMR2H Clock Source
SYSCLK / 12
External Clock / 8
SYSCLK
T2ML
0
0
1
T2XCLK
0
1
X
TMR2L Clock Source
SYSCLK / 12
External Clock / 8
SYSCLK
The TF2H bit is set when TMR2H overflows from 0xFF to 0x00; the TF2L bit is set when TMR2L overflows
from 0xFF to 0x00. When Timer 2 interrupts are enabled, an interrupt is generated each time TMR2H over-
flows. If Timer 2 interrupts are enabled and TF2LEN (TMR2CN.5) is set, an interrupt is generated each
time either TMR2L or TMR2H overflows. When TF2LEN is enabled, software must check the TF2H and
TF2L flags to determine the source of the Timer 2 interrupt. The TF2H and TF2L interrupt flags are not
cleared by hardware and must be manually cleared by software.
T2XCLK
SYSCLK / 12
0
T2MH
TMR2RLH
Reload
To SMBus
0
External Clock / 8
1
1
TR2
TCLK
TMR2H
TF2H
TF2L
TF2LEN
Interrupt
T2SPLIT
SYSCLK
T2ML
TMR2RLL
Reload
TR2
T2XCLK
1
TCLK
TMR2L
To ADC,
SMBus
0
Figure 25.5. Timer 2 8-Bit Mode Block Diagram
Rev 1.1
181
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
C8051T630DB20 BOARD SOCKET DAUGHTER 20-QFN
CAN-100 BOARD EVAL RS232 100QFP
CANADAPT28 KIT ADAPTER CANDEMOBOARD 28PLCC
CAT24AA01WI-GT3 IC EEPROM SERIAL 1KB I2C 8SOIC
CAT24AA02WI-G IC EEPROM SERIAL 2KB I2C 8SOIC
CAT24C01ZI-G IC EEPROM SERIAL 1KB I2C 8MSOP
CAT24C03WI-G IC EEPROM SERIAL 2KB I2C 8SOIC
CAT24C04ZI-G IC EEPROM SERIAL 4KB I2C 8MSOP
相关代理商/技术参数
C8051T610DB28 功能描述:子卡和OEM板 C8051T610 Family Socket Daughtr Board RoHS:否 制造商:BeagleBoard by CircuitCo 产品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit
C8051T610DB32 功能描述:子卡和OEM板 C8051T610 Family Socket Daughtr Board RoHS:否 制造商:BeagleBoard by CircuitCo 产品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit
C8051T610DK 功能描述:开发板和工具包 - 8051 C8051T610 Series Development Kit RoHS:否 制造商:Silicon Labs 产品:Development Kits 工具用于评估:C8051F960, Si7005 核心: 接口类型:USB 工作电源电压:
C8051T610-GQ 功能描述:8位微控制器 -MCU 16KB 10ADC 32Pin MCU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
C8051T610-GQR 功能描述:8位微控制器 -MCU 16KB 10ADC 32Pin MCU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
C8051T611-GM 功能描述:8位微控制器 -MCU 16KB 10ADC 28Pin MCU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
C8051T611-GMR 功能描述:8位微控制器 -MCU 16KB 10ADC 28Pin MCU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
C8051T612-GQ 功能描述:8位微控制器 -MCU 8KB 10ADC 32Pin MCU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT