参数资料
型号: MB9AF312NPMC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 40 MHz, RISC MICROCONTROLLER, PQFP100
封装: 0.50 MM PITCH, PLASTIC, LQFP-100
文件页数: 89/114页
文件大小: 1357K
代理商: MB9AF312NPMC
ATmega48PA/88PA/168PA [DATASHEET]
9223F–AVR–04/14
76
14.3.3 Alternate Functions of Port D
The port D pins with alternate functions are shown in Table 14-9.
The alternate pin configuration is as follows:
AIN1/OC2B/PCINT23 – Port D, Bit 7
AIN1, analog comparator negative input. Configure the port pin as input with the internal pull-up switched off to avoid the
digital port function from interfering with the function of the analog comparator.
PCINT23: Pin change interrupt source 23. The PD7 pin can serve as an external interrupt source.
Table 14-8. Overriding Signals for Alternate Functions in PC3...PC0
Signal
Name
PC3/ADC3/
PCINT11
PC2/ADC2/
PCINT10
PC1/ADC1/
PCINT9
PC0/ADC0/
PCINT8
PUOE
0
PUOV
0
DDOE
0
DDOV
0
PVOE
0
PVOV
0
DIEOE
PCINT11
× PCIE1 +
ADC3D
PCINT10
× PCIE1 +
ADC2D
PCINT9
× PCIE1 +
ADC1D
PCINT8
× PCIE1 +
ADC0D
DIEOV
PCINT11
× PCIE1
PCINT10
× PCIE1
PCINT9
× PCIE1
PCINT8
× PCIE1
DI
PCINT11 INPUT
PCINT10 INPUT
PCINT9 INPUT
PCINT8 INPUT
AIO
ADC3 INPUT
ADC2 INPUT
ADC1 INPUT
ADC0 INPUT
Table 14-9. Port D Pins Alternate Functions
Port Pin
Alternate Function
PD7
AIN1 (analog comparator negative input)
PCINT23 (pin change interrupt 23)
PD6
AIN0 (analog comparator positive input)
OC0A (Timer/Counter0 output compare match A output)
PCINT22 (pin change interrupt 22)
PD5
T1 (Timer/Counter 1 external counter input)
OC0B (Timer/Counter0 output compare match B output)
PCINT21 (pin change interrupt 21)
PD4
XCK (USART external clock input/output)
T0 (Timer/Counter 0 external counter input)
PCINT20 (pin change interrupt 20)
PD3
INT1 (external interrupt 1 input)
OC2B (Timer/Counter2 output compare match B output)
PCINT19 (pin change interrupt 19)
PD2
INT0 (external interrupt 0 input)
PCINT18 (pin change interrupt 18)
PD1
TXD (USART output pin)
PCINT17 (pin change interrupt 17)
PD0
RXD (USART input pin)
PCINT16 (pin change interrupt 16)
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