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參數(shù)資料
| 型號： | MC68HC705SR3CP |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDIP40 |
| 封裝： | PLASTIC, DIP-40 |
| 文件頁數(shù)： | 44/96頁 |
| 文件大?。?/td> | 3045K |
| 代理商： | MC68HC705SR3CP |
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MC68HC05SR3
Freescale
6-3
TIMER
6
6.2
Timer Control Register (TCR)
The TCR enables the software to control the operation of the timer.
TIF — Timer Interrupt Flag
1 (set)
–
The timer has reached a count of zero.
0 (clear) –
The timer has not reached a count of zero.
The timer interrupt flag is set when the 8-bit counter decrements to zero. This bit is cleared on
reset, or by writing a “0” to the TIF bit.
TIM — Timer Interrupt Mask
1 (set)
–
Timer interrupt request to the CPU is masked (disabled).
0 (clear) –
Timer interrupt request to the CPU is not masked (enabled).
A reset sets this bit to one; it must then be cleared by software to enable the timer interrupt to the
CPU. This timer interrupt mask only masks timer interrupt request to the CPU, and does not affect
counting of the 8-bit counter or the setting of TIF.
TCEX — Timer Clock EXternal
TINE — Timer INput Enable
These two bits selects the source of the timer clock. Reset or power-on clears these bits to zero.
PRER — PREscaler Reset
Writing a “1” to this write-only bit will reset the prescaler to zero, which is necessary for any new
counts set by writing to the Timer Data Register.This bit always reads as zero, and is not affected
by reset.
Address
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
State
on reset
$09
TIF
TIM
TCEX
TINE
PRER
PRE2
PRE1
PRE0
0100 -100
TCEX
TINE
Clock Source
00
Internal clock to timer
01
“AND” of internal clock and TIMER pin to timer
10
Input clock to timer disabled
11
TIMER pin to timer
TPG
47
05SR3.Book Page 3 Thursday, August 4, 2005 1:08 PM
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| MC68HC705SR3CFB | 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PQFP44 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC705SR3CPE | 功能描述:8位微控制器 -MCU 8B MCU 192 BYTES RAM 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(shí)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 |
| MC68HC705SR3CPE | 制造商:Freescale Semiconductor 功能描述:8-Bit Microcontroller IC |
| MC68HC705SR3PE | 功能描述:IC MCU 3.75K 2.1MHZ OTP 40-DIP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 標(biāo)準(zhǔn)包裝:1 系列:AVR® ATmega 核心處理器:AVR 芯體尺寸:8-位 速度:16MHz 連通性:I²C，SPI，UART/USART 外圍設(shè)備:欠壓檢測/復(fù)位，POR，PWM，WDT 輸入/輸出數(shù):32 程序存儲器容量:32KB（16K x 16） 程序存儲器類型:閃存 EEPROM 大小:1K x 8 RAM 容量:2K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:44-TQFP 包裝:剪切帶 (CT) 其它名稱:ATMEGA324P-B15AZCT |
| MC68HC706P6ACDW | 制造商:Motorola Inc 功能描述: |
| MC68HC708MP16CFU | 制造商:MAJOR 功能描述: |
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