參數(shù)資料
型號： PIC12F675
廠商： Microchip Technology Inc.
英文描述： 8-Pin, 8-Bit CMOS Enhanced FLASH Microcontroller with A/D Converter and EEPROM Data Memory(-2.5~5.5V,具ADC,閃速微控制器)
中文描述： 8引腳，8位閃存微控制器的CMOS增強(qiáng)與A / D轉(zhuǎn)換器和EEPROM數(shù)據(jù)存儲器（-2.5?5.5V的，具藝術(shù)發(fā)展局，閃速微控制器）
文件頁數(shù)： 52/170頁
文件大小： 4191K
代理商： PIC12F675
PIC16F62X
DS40300C-page 50
Preliminary
2003 Microchip Technology Inc.
8.0
TIMER2 MODULE
Timer2 is an 8-bit timer with a prescaler and a
postscaler. It can be used as the PWM time-base for
PWM mode of the CCP module. The TMR2 register is
readable and writable, and is cleared on any device
RESET.
The input clock (F
OSC
/4) has a prescale option of 1:1,
1:4
or
1:16,
selected
T2CKPS1:T2CKPS0 (T2CON<1:0>).
by
control
bits
The Timer2 module has an 8-bit Period Register PR2.
Timer2 increments from 00h until it matches PR2 and
then resets to 00h on the next increment cycle. PR2 is
a readable and writable register. The PR2 register is
initialized to FFh upon RESET.
The match output of TMR2 goes through a 4-bit
postscaler (which gives a 1:1 to 1:16 scaling inclusive)
to generate a TMR2 interrupt (latched in flag bit
TMR2IF, (PIR1<1>)).
Timer2 can be shut off by clearing control bit TMR2ON
(T2CON<2>) to minimize power consumption.
Register 8-1 shows the Timer2 Control register.
8.1
Timer2 Prescaler and Postscaler
The prescaler and postscaler counters are cleared
when any of the following occurs:
A write to the TMR2 register
A write to the T2CON register
Any device RESET (Power-on Reset, MCLR
Reset, Watchdog Timer Reset, or Brown-out
Reset)
TMR2 is not cleared when T2CON is written.
8.2
Output of TMR2
The output of TMR2 (before the postscaler) is fed to the
Synchronous Serial Port module which optionally uses
it to generate shift clock.
FIGURE 8-1:
TIMER2 BLOCK DIAGRAM
Comparator
TMR2
output (1)
Sets flag
bit TMR2IF
TMR2 reg
RESET
Postscaler
1:1
to
Prescaler
1:1, 1:4, 1:16
PR2 reg
2
F
OSC
/4
1:16
EQ
4
Note
1:
TMR2 register output can be software selected by the
SSP Module as a baud clock.
T2CKPS<1:0>
TOUTPS<3:0>
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PIC12F675 DEVELOPMENT BOARD KIT 功能描述:DEVELOPMENT BOARD FOR PIC12F675 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標(biāo)準(zhǔn)包裝:1 系列:*
PIC12F675 DEVELOPMENT KIT 功能描述:EMBEDDED C DEVELOPMENT KIT RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 傳感器類型:CMOS 成像，彩色（RGB） 傳感范圍:WVGA 接口:I²C 靈敏度:60 fps 電源電壓:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相關(guān)產(chǎn)品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP
PIC12F675 I/SN0547 制造商:Microchip Technology Inc 功能描述:
PIC12F675-E 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8-Pin, Flash-Based 8-Bit CMOS Microcontrollers
PIC12F675-E/MD 功能描述:8位微控制器 -MCU 1.75KB 64 RAM 6I/O Ext Temp QFN RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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