參數(shù)資料
型號： MC68HC705JB4P
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, OTPROM, 3 MHz, MICROCONTROLLER, PDIP28
封裝： PLASTIC, DIP-28
文件頁數(shù)： 94/134頁
文件大?。?/td> 1305K
代理商： MC68HC705JB4P
GENERAL RELEASE SPECIFICATION
February 24, 1999
MOTOROLA
16-BIT TIMER
MC68HC05JB4
9-6
REV 2
The result obtained by an input capture will be one count higher than the value of
the free-running timer counter preceding the external transition. This delay is
required for internal synchronization. Resolution is affected by the prescaler,
allowing the free-running timer counter to increment once every four internal clock
cycles (eight oscillator clock cycles).
Reading the ICRH inhibits further captures until the ICRL is also read. Reading
the ICRL after reading the timer status register (TSR) clears the ICF ag bit. does
not inhibit transfer of the free-running counter. There is no conict between read-
ing the ICRL and transfers from the free-running timer counters. The input capture
registers always contain the free-running timer counter value which corresponds
to the most recent input capture.
NOTE
To prevent interrupts from occurring between readings of the ICRH and ICRL, set
the I bit in the condition code register (CCR) before reading ICRH and clear the I
bit after reading ICRL.
9.4
OUTPUT COMPARE REGISTERS
The Output Compare function is a means of generating an interrupt when the 16-
bit timer counter reaches a selected value as shown in Figure 9-8. Software
writes the selected value into the output compare registers. On every fourth inter-
nal clock cycle (every eight oscillator clock cycle) the output compare circuitry
compares the value of the free-running timer counter to the value written in the
output compare registers. When a match occurs, the output compare interrupt
ag, OCF is set. A timer interrupt request to the CPU is generated if the output
compare interrupt enable is set, i.e. OCIE=1.
Software can use the output compare register to measure time periods, to gener-
ate timing delays, or to generate a pulse of specic duration or a pulse train of
specic frequency and duty cycle.
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
ICRH
R
ICRH7
ICRH6
ICRH5
ICRH4
ICRH3
ICRH2
ICRH1
ICRH0
$0014
W
reset:
UUUUUUUU
ICRL
R
ICRL7
ICRL6
ICRL5
ICRL4
ICRL3
ICRL2
ICRL1
ICRL0
$0015
W
reset:
UUUUUUUU
U = UNAFFECTED BY RESET
Figure 9-7. Input Capture Registers (ICRH, ICRL)
相關(guān)PDF資料
PDF描述
MC68HC705L16CFU 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQFP80
MC68HC05L16CFU 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP80
MC68HC705P9CDWR2 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28
MC68HC705V12CFNR2 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQCC68
MC68HC708AS48CFN 8-BIT, EEPROM, 8.4 MHz, MICROCONTROLLER, PQCC52
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC705JJ7CDW 功能描述:IC MCU 8BIT 20-SOIC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 其它有關(guān)文件:STM32F101T8 View All Specifications 特色產(chǎn)品:STM32 32-bit Cortex MCUs 標準包裝:490 系列:STM32 F1 核心處理器:ARM? Cortex?-M3 芯體尺寸:32-位 速度:36MHz 連通性:I²C，IrDA，LIN，SPI，UART/USART 外圍設(shè)備:DMA，PDR，POR，PVD，PWM，溫度傳感器，WDT 輸入/輸出數(shù):26 程序存儲器容量:64KB（64K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):2 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 10x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:36-VFQFN，36-VFQFPN 包裝:托盤 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名稱:497-9032STM32F101T8U6-ND
MC68HC705JP7CDW 功能描述:IC MCU 8BIT 28-SOIC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 其它有關(guān)文件:STM32F101T8 View All Specifications 特色產(chǎn)品:STM32 32-bit Cortex MCUs 標準包裝:490 系列:STM32 F1 核心處理器:ARM? Cortex?-M3 芯體尺寸:32-位 速度:36MHz 連通性:I²C，IrDA，LIN，SPI，UART/USART 外圍設(shè)備:DMA，PDR，POR，PVD，PWM，溫度傳感器，WDT 輸入/輸出數(shù):26 程序存儲器容量:64KB（64K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):2 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 10x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:36-VFQFN，36-VFQFPN 包裝:托盤 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名稱:497-9032STM32F101T8U6-ND
MC68HC705JP7CP 制造商:Rochester Electronics LLC 功能描述: 制造商:Freescale Semiconductor 功能描述:
MC68HC705K1CDW 制造商:Motorola Inc 功能描述:
MC68HC705KJ1CDW 功能描述:8位微控制器 -MCU 8 Bit 4MHz 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 安裝風格:SMD/SMT
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*