Rainbow Electronics ATtiny2313 - Manual (Page 57)

57
ATtiny2313
2543A–AVR–08/03
Alternate Functions of Port D The Port D pins with alternate functions are shown in Table 29.
The alternate pin configuration is as follows:
• ICP – Port D, Bit 6
ICP: Timer/Counter1 Input Capture Pin. The PD6 pin can act as an Input Capture pin for
Timer/Counter1
• OC1B/T1 – Port D, Bit 5
OC0B: Output Compare Match B output: The PD5 pin can serve as an external output
for the Timer/Counter0 Output Compare B. The pin has to be configured as an output
(DDB5 set (one)) to serve this function. The OC0B pin is also the output pin for the PWM
mode timer function.
T1: Timer/Counter1 External Counter Clock input is enabled by setting (one) the bits
CS02 and CS01 in the Timer/Counter1 Control Register (TCCR1).
Table 28. Overriding Signals for Alternate Functions in PB3..PB0
Signal
Name PB3/OC1A/
PCINT3 PB2/OC0A/
PCINT2 PB1/AIN1/
PCINT1 PB0/AIN0/
PCINT0
PUOE 0 0 0 0
PUOV 0 0 0 0
DDOE 0 0 0 0
DDOV 0 0 0 0
PVOE OC1A_PVOE OC0A_PVOE 0 0
PVOV OC1A_PVOV OC0A_PVOV 0 0
PTOE 0 0 0 0
DIEOE (PCINT3 • PCIE) (PCINT2 • PCIE) (PCINT1 • PCIE) (PCINT0 • PCIE)
DIEOV 1 1 1 1
DI PCINT7 INPUT PCINT6 INPUT PCINT5 INPUT PCINT4 INPUT
AIO – – AIN1 AIN0
Table 29. Port D Pins Alternate Functions
Port Pin Alternate Function
PD6 ICP
PD5 OC0B/T1
PD4 T0
PD3 INT1
PD2 INT0/XCK/CKOUT
PD1 TXD
PD0 RXD