- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄69029 > MC68HC901FNR2 (MOTOROLA INC) MULTIFUNCTION PERIPHERAL, PQCC52 PDF資料下載
參數(shù)資料
| 型號： | MC68HC901FNR2 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 外設(shè)及接口 |
| 英文描述： | MULTIFUNCTION PERIPHERAL, PQCC52 |
| 封裝： | PLASTIC, LCC-52 |
| 文件頁數(shù)： | 19/73頁 |
| 文件大?。?/td> | 274K |
| 代理商： | MC68HC901FNR2 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁當(dāng)前第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁
Interrupt Structure
MOTOROLA
MC68HC901 USER’S MANUAL
4-3
V7-V4 — Vector
These upper four bits of the vector register are written by the user. These bits become the
most-significant four bits of the interrupt vector number.
S — In-Service Register Enable
1 = Software end-of-interrupt mode and in-service register bits enabled.
0 = Automatic end-of-interrupt mode and in-service register bits forced low.
Bits 2-0 — *Unused
Unused bits read as zero.
4.2 DAISY-CHAINING MFPs
As an interrupt controller, the MFP will support eight external interrupt sources in addition
to its eight internal interrupt sources. When a system requires more than eight external
interrupt sources to be placed at the same interrupt level, sources may be added to the
prioritized structure by daisy-chaining MFPs. Interrupt sources are prioritized internally
within each MFP, and the MFPs are prioritized by their position in the chain. Unique vector
numbers are provided for each interrupt source.
The IEI and IEO signals implement the daisy-chained structure. The IEI of the highest
priority MFP is tied low and the IEO output of this device is tied to the next highest priority
MFP IEI. The IEI and IEO signals are daisy-chained in this manner for all the MFPs in the
chain with the lowest priority MFP IEO left unconnected. Figure 4-1 shows a diagram of the
interrupt daisy-chain.
Daisy-chaining requires that all parts in the chain have a common IACK. When the common
IACK is asserted during an interrupt acknowledge cycle, all parts will prioritize interrupts in
parallel. When the IEI signal to an MFP is asserted, the part may respond to the IACK cycle
if it requires interrupt service. Otherwise, the part will assert IEO to the next lower priority
device. Thus, priority is passed down the chain via IEI and IEO until a part which has a
pending interrupt is reached. The part with the pending interrupt passes a vector number to
the processor and does not propagate IEO.
Figure 4-1. Daisy-Chained Interrupt Structure
FIGURE - DAISY-CHAINED INTERRUPT STRUCTURE
MC68HC901UM / AD
IACK
HIGHEST
PRIORITY
MC68HC901
IEI
IEO
IACK
LOWEST
PRIORITY
MC68HC901
IEI
IACK
MC68HC901
IEI
IEO
IACK
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68HC908AS32AVFUE | 8-BIT, FLASH, 8.4 MHz, MICROCONTROLLER, PQFP64 |
| MC68HC908AS32AMFNE | 8-BIT, FLASH, 8.4 MHz, MICROCONTROLLER, PQCC52 |
| MC68HC908AS32AVFNE | 8-BIT, FLASH, 8.4 MHz, MICROCONTROLLER, PQCC52 |
| MC68HC908AS32AVFN | 8-BIT, FLASH, 8.4 MHz, MICROCONTROLLER, PQCC52 |
| MC68HC908AS32AMFN | 8-BIT, FLASH, 8.4 MHz, MICROCONTROLLER, PQCC52 |
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 |
| 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 程序存儲器容量:40KB（20K x 16） 程序存儲器類型: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 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 程序存儲器容量:40KB（20K x 16） 程序存儲器類型: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 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323 |
| MC68HC908AP16CBE | 制造商:Freescale Semiconductor 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。