参数资料
型号: ATTINY24A-SSN
厂商: Atmel
文件页数: 39/135页
文件大小: 0K
描述: IC MCU AVR 2KB FLASH 20MHZ 14SOI
产品培训模块: MCU Product Line Introduction
tinyAVR Introduction
标准包装: 57
系列: AVR® ATtiny
核心处理器: AVR
芯体尺寸: 8-位
速度: 20MHz
连通性: USI
外围设备: 欠压检测/复位,POR,PWM,温度传感器,WDT
输入/输出数: 12
程序存储器容量: 2KB(1K x 16)
程序存储器类型: 闪存
EEPROM 大小: 128 x 8
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 5.5 V
数据转换器: A/D 8x10b
振荡器型: 内部
工作温度: -40°C ~ 105°C
封装/外壳: 14-SOIC(0.154",3.90mm 宽)
包装: 管件
133
32015G–AVR32–09/09
AT32AP7001
15. External Interrupt Controller (EIC)
Rev: 1.0.0.1
15.1
Features
Dedicated interrupt requests for each interrupt
Individually maskable interrupts
Interrupt on rising or falling edge
Interrupt on high or low level
Maskable NMI interrupt
15.2
Description
The External Interrupt Controller allows 4 pins to be configured as external interrupts. Each pin
has its own interrupt request, and can be individually masked. Each pin can generate an inter-
rupt on rising or falling edge, or high or low level.
The module also masks the NMI_N pin, which generates the NMI interrupt for the CPU.
15.3
Block Diagram
Figure 15-1. External Interrupt Controller block diagram
15.4
Product Dependencies
15.4.1
I/O Lines
The External Interrupt and NMI pins are multiplexed with PIO lines. To act as external interrupts,
these pins must be configured as inputs pins by the PIO controller. It is also possible to trigger
the interrupt by driving these pins from registers in the PIO controller, or another peripheral out-
put connected to the same pin.
Sync
Edge/Level
Detector
Mask
IRQn
EXTINTn
INTn
LEVEL
MODE
IER
IDR
ICR
ISR
IMR
NMI_N
Sync
Mask
NMI_IRQ
NMIC
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