- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄371053 > MC68HC901FN (MOTOROLA INC) Multi-Function Peripheral PDF資料下載
參數(shù)資料
| 型號(hào)： | MC68HC901FN |
| 廠商： | MOTOROLA INC |
| 元件分類： | 外設(shè)及接口 |
| 英文描述： | Multi-Function Peripheral |
| 中文描述： | MULTIFUNCTION PERIPHERAL, PQCC52 |
| 封裝： | PLASTIC, LCC-52 |
| 文件頁(yè)數(shù)： | 38/73頁(yè) |
| 文件大小： | 274K |
| 代理商： | MC68HC901FN |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)當(dāng)前第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)
MOTOROLA
MC68HC901 USER’S MANUAL
6-1
SECTION 6
TIMERS
The MFP contains four 8-bit timers which provide many functions typically required in
microprocessor systems. The timers can supply the baud rate clocks for the on-chip serial
I/O channel, generate periodic interrupts, measure elapsed time, and count signal
transitions. In addition, two timers have waveform generation capability.
All timers are prescaler/counter timers with a common independent clock input (XTAL1 and
XTAL2). Each timer's output signal toggles when the timer's main counter times out.
Additionally, timers A and B have auxiliary control signals (TAI, TBI) which are used in two
of the operation modes. An interrupt channel is assigned to each timer, and when the
auxiliary control signals are used in the pulse width measurement mode, a separate interrupt
channel will respond to transitions on these inputs.
6.1 OPERATION MODES
Timers A and B are full function timers which, in addition to the delay mode, operate in the
pulse width measurements mode and the event count mode. Timers C and D are delay
timers only. A brief discussion of each of the timer modes follows.
6.1.1 Delay Mode Operation
All timers may operate in the delay mode. In this mode, the prescaler is always active. The
prescaler specifies the number of timer clock cycles which must elapse before a count pulse
is applied to the main counter. A count pulse causes the main counter to decrement by one.
When the timer has decremented down to 01 (hexadecimal), the next count pulse will cause
the main counter to be reloaded from the timer data register and a time out pulse will be
produced. This time out pulse is coupled to the timer's interrupt channel and, if the channel
is enabled, an interrupt will occur. The time out pulse also causes the timer output pin to
toggle. The output will remain in this new state until the next time out pulse occurs.
For example, if delay mode with a divide-by-10 prescaler is selected and the timer data
register is loaded with 100 (decimal), the main counter will decrement once every 10 timer
clock cycles. After 1000 timer clocks, a time out pulse will be produced. This time out pulse
will generate an interrupt if the channel is enabled (IERA, IERB), and in addition, the timer's
output line will toggle. The output line will complete one full period every 2000 cycles of the
timer clock.
If the prescaler value is changed while the timer is enabled, the first time out pulse will occur
at an indeterminate time no less than one or more than 200 timer clock cycles. Subsequent
time out pulses will then occur at the correct interval.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68HC901P | Multi-Function Peripheral |
| MC68HC916X1 | 16-Bit Modular Microcontroller(16位模塊化微控制器) |
| MC68HC9D60 | Advance Information - Rev 4.0 |
| MC68HC12D60 | Advance Information - Rev 4.0 |
| MC68HCL05C8A | 8-Bit Microcontroller Units (MCU).(8位微控制器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC908AB32CFU | 功能描述:IC MCU 8MHZ 32K FLASH 64-QFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC08 其它有關(guān)文件:STM32F101T8 View All Specifications 特色產(chǎn)品:STM32 32-bit Cortex MCUs 標(biāo)準(zhǔn)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(chǔ)器容量:64KB（64K x 8） 程序存儲(chǔ)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(pán) 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 |
| MC68HC908AB32MFU | 制造商:Rochester Electronics LLC 功能描述:32K FLASH & 512 EE - Bulk |
| MC68HC908AB32MPB | 功能描述:IC MCU 32K FLASH 8MHZ 64-LQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC08 標(biāo)準(zhǔn)包裝:250 系列:56F8xxx 核心處理器:56800E 芯體尺寸:16-位 速度:60MHz 連通性:CAN，SCI，SPI 外圍設(shè)備:POR，PWM，溫度傳感器，WDT 輸入/輸出數(shù):21 程序存儲(chǔ)器容量:40KB（20K x 16） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:6K x 16 電壓 - 電源 (Vcc/Vdd):2.25 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 6x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:48-LQFP 包裝:托盤(pán) 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323 |
| MC68HC908AP16CB | 功能描述:IC MCU 16K FLASH 8MHZ 42SDIP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC08 標(biāo)準(zhǔn)包裝:250 系列:56F8xxx 核心處理器:56800E 芯體尺寸:16-位 速度:60MHz 連通性:CAN，SCI，SPI 外圍設(shè)備:POR，PWM，溫度傳感器，WDT 輸入/輸出數(shù):21 程序存儲(chǔ)器容量:40KB（20K x 16） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:6K x 16 電壓 - 電源 (Vcc/Vdd):2.25 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 6x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:48-LQFP 包裝:托盤(pán) 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323 |
| MC68HC908AP16CBE | 制造商:Freescale Semiconductor 功能描述: |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。