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| 型号： | R5F2138CFJFP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | FLASH, 20 MHz, MICROCONTROLLER, PQFP80 |
| 封装： | 12 X 12 MM, 0.50 MM PITCH, PLASTIC, LQFP-80 |
| 文件页数： | 13/30页 |
| 文件大小： | 483K |
| 代理商： | R5F2138CFJFP |
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ATmega165A/PA/325A/PA/3250A/PA/645A/P/6450A/P [DATASHEET]
8285E–AVR–02/2013
Table 14-7 relates the alternate functions of Port D to the overriding signals shown in Figure 14-5 on page 66.
14.3.3
Alternate functions of Port E
The Port E pins with alternate functions are shown in Table 14-8.
PCINT7 – Port E, Bit 7
PCINT7, Pin Change Interrupt Source 7: The PE7 pin can serve as an external interrupt source.
CLKO, Divided System Clock: The divided system clock can be output on the PE7 pin. The divided system clock
will be output if the CKOUT Fuse is programmed, regardless of the PORTE7 and DDE7 settings. It will also be out-
put during reset.
DO/PCINT6 – Port E, Bit 6
DO, Universal Serial Interface Data output.
PCINT6, Pin Change Interrupt Source 6: The PE6 pin can serve as an external interrupt source.
DI/SDA/PCINT5 – Port E, Bit 5
DI, Universal Serial Interface Data input.
SDA, Two-wire Serial Interface Data:
Table 14-7.
Overriding signals for alternate functions in PD1:PD0.
Signal name
PD1/INT0
PD0/ICP1
PUOE
0
PUOV
0
DDOE
0
DDOV
0
PVOE
0
PVOV
0
PTOE
–
DIEOE
INT0 ENABLE
0
DIEOV
INT0 ENABLE
0
DI
INT0 INPUT
ICP1 INPUT
AIO
–
Table 14-8.
Port E pins alternate functions.
Port pin
Alternate function
PE7
PCINT7 (Pin Change Interrupt7)
CLKO (Divided System Clock)
PE6
DO/PCINT6 (USI Data Output or Pin Change Interrupt6)
PE5
DI/SDA/PCINT5 (USI Data Input or TWI Serial DAta or Pin Change Interrupt5)
PE4
USCK/SCL/PCINT4 (USART External Clock Input/Output or TWI Serial Clock or Pin Change Interrupt4)
PE3
AIN1/PCINT3 (Analog Comparator Negative Input or Pin Change Interrupt3)
PE2
XCK/AIN0/ PCINT2 (USART External Clock or Analog Comparator Positive Input or Pin Change Interrupt2)
PE1
TXD/PCINT1 (USART Transmit Pin or Pin Change Interrupt1)
PE0
RXD/PCINT0 (USART Receive Pin or Pin Change Interrupt0)
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