- 您现在的位置：买卖IC网 > PDF目录69379 > ST7PLUSA2M6TR (STMICROELECTRONICS) 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO8 PDF资料下载
参数资料
| 型号： | ST7PLUSA2M6TR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO8 |
| 封装： | 0.150 INCH, ROHS COMPLIANT, PLASTIC, SOP-8 |
| 文件页数： | 92/136页 |
| 文件大小： | 1705K |
| 代理商： | ST7PLUSA2M6TR |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页当前第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页第126页第127页第128页第129页第130页第131页第132页第133页第134页第135页第136页
Obsolete
Product(s)
- Obsolete
Product(s)
Obsolete
Product(s)
- Obsolete
Product(s)
ST7LITEUS2, ST7LITEUS5
I/O ports
59/136
9
I/O ports
9.1
Introduction
The I/O port offers different functional modes:
●
Transfer of data through digital inputs and outputs
and for specific pins:
●
External interrupt generation
●
Alternate signal input/output for the on-chip peripherals.
An I/O port contains up to 6 pins. Each pin (except PA3/RESET) can be programmed
independently as digital input (with or without interrupt generation) or digital output.
9.2
Functional description
Each port has 2 main registers:
●
Data register (DR)
●
Data Direction register (DDR)
and one optional register:
●
Option register (OR)
Each I/O pin may be programmed using the corresponding register bits in the DDR and OR
registers: bit X corresponding to pin X of the port. The same correspondence is used for the
DR register.
The following description takes into account the OR register, (for specific ports which do not
provide this register refer to the I/O Port Implementation section). The generic I/O block
diagram is shown in Figure 28.
9.2.1
Input modes
The input configuration is selected by clearing the corresponding DDR register bit.
In this case, reading the DR register returns the digital value applied to the external I/O pin.
Different input modes can be selected by software through the OR register.
Note:
1
Writing the DR register modifies the latch value but does not affect the pin status.
2
PA3 cannot be configured as input.
External interrupt function
When an I/O is configured as Input with Interrupt, an event on this I/O can generate an
external interrupt request to the CPU.
Each pin can independently generate an interrupt request. The interrupt sensitivity is
independently programmable using the sensitivity bits in the EICR register.
External interrupts are hardware interrupts. Fetching the corresponding interrupt vector
automatically clears the request latch. Changing the sensitivity of a particular external
interrupt clears this pending interrupt. This can be used to clear unwanted pending
interrupts.
相关PDF资料 |
PDF描述 |
|---|---|
| ST7PLUSA5U3 | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO8 |
| ST7FLITEUSA5B6 | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDIP8 |
| ST7FLITEUSA2B6 | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDIP8 |
| ST7PLUSA2B6 | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP8 |
| ST7FLITEUSA5U6TR | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ST7PMC1K2B3 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-bit MCU with nested interrupts, Flash, 10-bit ADC, brushless motor control, five timers, SPI, LINSCI? |
| ST7PMC1K2B6 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, BRUSHLESS MOTOR CONTROL, FIVE TIMERS, SPI, LINSCI |
| ST7PMC1K2T3 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-bit MCU with nested interrupts, Flash, 10-bit ADC, brushless motor control, five timers, SPI, LINSCI? |
| ST7PMC1K2T6 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, BRUSHLESS MOTOR CONTROL, FIVE TIMERS, SPI, LINSCI |
| ST7PMC1K2T6/ST7PMC1K2 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, BRUSHLESS MOTOR CONTROL, FIVE TIMERS, SPI, LINSCI |
发布紧急采购，3分钟左右您将得到回复。