Rainbow Electronics ATtiny10 - Manual (Page 49)

49
8127B–AVR–08/09
ATtiny4/5/9/10
• OC0B: Output Compare Match output: The PB1 pin can serve as an external output for the
Timer/Counter0 Compare Match B. The PB1 pin has to be configured as an output (DDB1
set (one)) to serve this function. The OC0B pin is also the output pin for the PWM mode timer
function.
• PCINT1: Pin Change Interrupt source 1. The PB1 pin can serve as an external interrupt
source for pin change interrupt 0.
• TPICLK: Serial Programming Clock.
• Port B, Bit 2 – ADC2/CLKO/INT0/PCINT2/T0
• ADC2: Analog to Digital Converter, Channel 2 (ATtiny5/10, only)
• CLKO: System Clock Output. The system clock can be output on pin PB2. The system clock
will be output if CKOUT bit is programmed, regardless of the PORTB2 and DDB2 settings.
• INT0: External Interrupt Request 0
• PCINT2: Pin Change Interrupt source 2. The PB2 pin can serve as an external interrupt
source for pin change interrupt 0.
• T0: Timer/Counter0 counter source.
• Port B, Bit 3 – ADC3/PCINT3/RESET
• ADC3: Analog to Digital Converter, Channel 3 (ATtiny5/10, only)
• PCINT3: Pin Change Interrupt source 3. The PB3 pin can serve as an external interrupt
source for pin change interrupt 0.
• RESET:
Table 10-4 and Table 10-5 on page 50 relate the alternate functions of Port B to the overriding
signals shown in Figure 10-6 on page 46 .
Table 10-4. Overriding Signals for Alternate Functions in PB3..PB2
Notes: 1. RSTDISBL is 1 when the configuration bit is “0” (Programmed).
2. CKOUT is 1 when the configuration bit is “0” (Programmed).
Signal
Name
PB3/ADC3/RESET/PCINT3 PB2/ADC2/INT0/T0/CLKO/PCINT2
PUOE RSTDISBL (1) CKOUT (2)
PUOV 1 0
DDOE RSTDISBL (1) CKOUT (2)
DDOV 0 1
PVOE 0 CKOUT (2)
PVOV 0 (system clock)
PTOE 0 0
DIEOE
RSTDISBL (1) + (PCINT3 • PCIE0) +
ADC3D
(PCINT2 • PCIE0) + ADC2D + INT0
DIEOV RSTDISBL • PCINT3 • PCIE0 (PCINT2 • PCIE0) + INT0
DI PCINT3 Input INT0/T0/PCINT2 Input
AIO ADC3 Input ADC2 Input