Материал: DOC1228

ATmega161(L)

• RXD1/AIN0 – Port B, Bit 2

AIN0, Analog Comparator Positive Input. This pin also serves as the positive input of the on-chip Analog Comparator.

RXD1, Receive Data (Data input pin for the UART1). When the UART1 receiver is enabled, this pin is configured as an input regardless of the value of DDRB2. When the UART1 forces this pin to be an input, a logical “1” in PORTB2 will turn on the internal pull-up.

• OC2/T1 – Port B, Bit 1

T1: Timer/Counter1 counter source. See “Timer/Counter1” on page 49 for further details.

OC2, Output compare match output: The PB1 pin can serve as an external output when the Timer/Counter2 compare matches. The PB1 pin has to be configured as an output (DDB1 set [one]) to serve this function. See “8-bit Timer/Counters T/C0 and T/C2” on page 40 for further details. The OC2 pin is also the output pin for the PWM mode timer function.

• OC0/T0 – Port B, Bit 0

T0: Timer/Counter0 counter source. See “8-bit Timer/Counters T/C0 and T/C2” on page 40 further details.

OC0, Output compare match output: The PB0 pin can serve as an external output when the Timer/Counter0 compare matches. The PB0 pin has to be configured as an output (DDB0 set [one]) to serve this function. See “8-bit Timer/Counters T/C0 and T/C2” on page 40 for further details and how to enable the output. The OC0 pin is also the output pin for the PWM mode timer function.

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1228B–09/01