参数资料
型号: ATTINY43U-MUR
厂商: Atmel
文件页数: 118/158页
文件大小: 0K
描述: MCU AVR 4KB FLASH 8MHZ 20QFN
产品培训模块: tinyAVR Introduction
标准包装: 6,000
系列: AVR® ATtiny
核心处理器: AVR
芯体尺寸: 8-位
速度: 8MHz
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: 16
程序存储器容量: 4KB(2K x 16)
程序存储器类型: 闪存
EEPROM 大小: 64 x 8
RAM 容量: 256 x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 5.5 V
数据转换器: A/D 4x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 20-WFQFN 裸露焊盘
包装: 带卷 (TR)
62
8048C–AVR–02/12
ATtiny43U
Bit 6 – INTF0: External Interrupt Flag 0
When an edge or logic change on the INT0 pin triggers an interrupt request, INTF0 becomes set
(one). If the I-bit in SREG and the INT0 bit in GIMSK are set (one), the MCU will jump to the cor-
responding Interrupt Vector. The flag is cleared when the interrupt routine is executed.
Alternatively, the flag can be cleared by writing a logical one to it. This flag is always cleared
when INT0 is configured as a level interrupt.
Bit 5 – PCIF1: Pin Change Interrupt Flag 1
When a logic change on any PCINT[15:8] pin triggers an interrupt request, PCIF1 becomes set
(one). If the I-bit in SREG and the PCIE1 bit in GIMSK are set (one), the MCU will jump to the
corresponding Interrupt Vector. The flag is cleared when the interrupt routine is executed. Alter-
natively, the flag can be cleared by writing a logical one to it.
Bit 4 – PCIF0: Pin Change Interrupt Flag 0
When a logic change on any PCINT[7:0] pin triggers an interrupt request, PCIF0 becomes set
(one). If the I-bit in SREG and the PCIE0 bit in GIMSK are set (one), the MCU will jump to the
corresponding Interrupt Vector. The flag is cleared when the interrupt routine is executed. Alter-
natively, the flag can be cleared by writing a logical one to it.
10.3.4
PCMSK1 – Pin Change Mask Register 1
Bits 7:0 – PCINT[15:8]: Pin Change Enable Mask 15:8
Each PCINT[15:8] bit selects whether pin change interrupt is enabled on the corresponding I/O
pin, or not. If PCINT[15:8] is set and the PCIE1 bit in GIMSK is set, pin change interrupt is
enabled on the corresponding I/O pin. If PCINT[15:8] is cleared, pin change interrupt on the cor-
responding I/O pin is disabled.
10.3.5
PCMSK0 – Pin Change Mask Register 0
Bits 7:0 – PCINT[7:0]: Pin Change Enable Mask 7:0
Each PCINT[7:0] bit selects whether pin change interrupt is enabled on the corresponding I/O
pin. If PCINT[7:0] is set and the PCIE0 bit in GIMSK is set, pin change interrupt is enabled on
the corresponding I/O pin. If PCINT[7:0] is cleared, pin change interrupt on the corresponding
I/O pin is disabled.
Bit
76543210
PCINT15
PCINT14
PCINT13
PCINT12
PCINT11
PCINT10
PCINT9
PCINT8
PCMSK1
Read/Write
R/W
Initial Value
00000000
Bit
765
432
10
PCINT7
PCINT6
PCINT5
PCINT4
PCINT3
PCINT2
PCINT1
PCINT0
PCMSK0
Read/Write
R/W
Initial Value
0
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