参数资料
型号: PIC16F59-I/PT
厂商: Microchip Technology
文件页数: 29/88页
文件大小: 0K
描述: IC PIC MCU FLASH 2KX12 44TQFP
产品培训模块: Asynchronous Stimulus
8-bit PIC® Microcontroller Portfolio
标准包装: 160
系列: PIC® 16F
核心处理器: PIC
芯体尺寸: 8-位
速度: 20MHz
外围设备: POR,WDT
输入/输出数: 32
程序存储器容量: 3KB(2K x 12)
程序存储器类型: 闪存
RAM 容量: 134 x 8
电压 - 电源 (Vcc/Vdd): 2 V ~ 5.5 V
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 44-TQFP
包装: 托盘
产品目录页面: 638 (CN2011-ZH PDF)
配用: AC164305-ND - MODULE SKT FOR PM3 44TQFP
2007 Microchip Technology Inc.
DS41213D-page 33
PIC16F5X
7.0
TIMER0 MODULE AND TMR0
REGISTER
The Timer0 module has the following features:
8-bit Timer/Counter register, TMR0
- Readable and writable
8-bit software programmable prescaler
Internal or external clock select
- Edge select for external clock
Figure 7-1 is a simplified block diagram of the Timer0
module.
Timer mode is selected by clearing the T0CS bit
(OPTION<5>). In Timer mode, the Timer0 module will
increment every instruction cycle (without prescaler). If
TMR0 register is written, the increment is inhibited for
the following two cycles (Figure 7-2 and Figure 7-3).
The user can work around this by writing an adjusted
value to the TMR0 register.
Counter mode is selected by setting the T0CS bit
(OPTION<5>). In this mode, Timer0 will increment
either on every rising or falling edge of pin T0CKI. The
incrementing edge is determined by the source edge
select bit T0SE (OPTION<4>). Clearing the T0SE bit
selects the rising edge. Restrictions on the external
clock input are discussed in detail in Section 7.1
The prescaler assignment is controlled in software by
the control bit PSA (OPTION<3>). Clearing the PSA bit
will assign the prescaler to Timer0. The prescaler is not
readable or writable. When the prescaler is assigned to
the Timer0 module, prescale values of 1:2, 1:4,...,
1:256 are selectable. Section 7.2 “Prescaler” details
the operation of the prescaler.
A summary of registers associated with the Timer0
module is found in Table 7-1.
FIGURE 7-1:
TIMER0 BLOCK DIAGRAM
FIGURE 7-2:
TIMER0 TIMING: INTERNAL CLOCK/NO PRESCALER
Note:
The prescaler may be used by either the
Timer0 module or the Watchdog Timer, but
not both.
Note 1:
Bits T0CS, T0SE, PSA, PS2, PS1 and PS0 are located in Section 3.4 “Option Register”.
2:
The prescaler is shared with the Watchdog Timer (Figure 7-5).
T0CKI
T0SE(1)
0
1
0
pin
T0CS(1)
FOSC/4
Programmable
Prescaler(2)
Sync with
Internal
Clocks
TMR0 Reg
PSout
(2 cycle delay)
PSout
Data Bus
8
PSA(1)
PS2, PS1, PS0(1)
3
Sync
PC - 1
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
PC
(Program
Counter)
Instruction
Fetch
Timer0
PC
PC + 1
PC + 2
PC + 3
PC + 4
PC + 5
PC + 6
T0
T0 + 1
T0 + 2
NT0
NT0 + 1
NT0 + 2
MOVWF TMR0 MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W
Write TMR0
executed
Read TMR0
reads NT0
Read TMR0
reads NT0
Read TMR0
reads NT0
Read TMR0
reads NT0 + 1
Read TMR0
reads NT0 + 2
Instruction
Executed
相关PDF资料
PDF描述
PIC16F616-I/P IC PIC MCU FLASH 2KX14 14DIP
PIC16F628-20I/SS IC MCU FLASH 2KX14 COMP 20SSOP
PIC16F639-I/SS IC MCU FLASH 2KX14 20SSOP
PIC16F648A-I/ML IC MCU FLASH 4KX14 EEPROM 28QFN
PIC16F676-I/ST IC MCU FLASH 1K W/AD 14-TSSOP
相关代理商/技术参数
参数描述
PIC16F59T-I/PT 功能描述:8位微控制器 -MCU 3KB FL 128R 32 I/O 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
PIC16F610-E/ML 功能描述:8位微控制器 -MCU 1.75KB Flash, E TEMP 72B RAM, QFN16 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
PIC16F610-E/P 功能描述:8位微控制器 -MCU 1.75KB Flash, E TEMP 72B RAM, PDIP14 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
PIC16F610-E/SL 功能描述:8位微控制器 -MCU 1.75KB Flash, E TEMP 72B RAM, SOIC16 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
PIC16F610-E/ST 功能描述:8位微控制器 -MCU 1.75KB Flash, E TEMP 72B RAM, TSSOP14 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