ATMEga64L ATMEL Corporation, ATMEga64L Datasheet - Page 79

• Manufacturer Part Number: ATMEga64L
• Description: 8-bit AVR Microcontroller with 64K Bytes In-System Programmable Flash
• Manufacturer: ATMEL Corporation

Alternate Functions of Port E
2490G–AVR–03/04
The Port E pins with alternate functions are shown in Table 39.
Table 39. Port E Pins Alternate Functions
Note:
• INT7/IC3 – Port E, Bit 7
INT7, External Interrupt Source 7: The PE7 pin can serve as an External Interrupt
source.
IC3 – Input Capture Pin3: The PE7 pin can act as an Input Capture pin for
Timer/Counter3.
• INT6/T3 – Port E, Bit 6
INT6, External Interrupt Source 6: The PE6 pin can serve as an External Interrupt
source.
T3, Timer/Counter3 Counter Source.
• INT5/OC3C – Port E, Bit 5
INT5, External Interrupt Source 5: The PE5 pin can serve as an External Interrupt
source.
OC3C, Output Compare Match C output: The PE5 pin can serve as an external output
for the Timer/Counter3 Output Compare C. The pin has to be configured as an output
(DDE5 set – one) to serve this function. The OC3C pin is also the output pin for the
PWM mode timer function.
• INT4/OC3B – Port E, Bit 4
INT4, External Interrupt Source 4: The PE4 pin can serve as an External Interrupt
source.
OC3B, Output Compare Match B output: The PE4 pin can serve as an external output
for the Timer/Counter3 Output Compare B. The pin has to be configured as an output
(DDE4 set – one) to serve this function. The OC3B pin is also the output pin for the
PWM mode timer function.
Port Pin
PE7
PE6
PE5
PE4
PE3
PE2
PE1
PE0
1. IC3, T3, OC3C, OC3B, OC3B, OC3A, and XCK0 not applicable in ATmega103 com-
patibility mode.
Alternate Function
INT7/IC3
INT6/ T3
INT5/OC3C
for Timer/Counter3)
INT4/OC3B
Timer/Counter3)
AIN1/OC3A
Output A for Timer/Counter3)
AIN0/XCK0
input/output)
PDO/TXD0 (Programming Data Output or UART0 Transmit Pin)
PDI/RXD0 (Programming Data Input or UART0 Receive Pin)
(1)
(1)
(External Interrupt 6 Input or Timer/Counter3 Clock Input)
(External Interrupt 7 Input or Timer/Counter3 Input Capture Trigger)
(1)
(1)
(1)
(1)
(External Interrupt 4 Input or Output Compare and PWM Output B for
(Analog Comparator Positive Input or USART0 external clock
(External Interrupt 5 Input or Output Compare and PWM Output C
(Analog Comparator Negative Input or Output Compare and PWM
ATmega64(L)
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