ATA664251_14 Datasheet, PDF (116/290 Pages) ATMEL Corporation – 16K Flash Microcontroller with LIN Transceiver

● PCINT10/OC1AV/USCK/SCL – Port B, Bit 2
PCINT10:
OC1AV:
Pin Change Interrupt, source 10.
Output Compare and PWM Output A-V for Timer/Counter1. The PB2 pin has to be configured as an
output (DDB2 set (one)) to serve this function. The OC1AV pin is also the output pin for the PWM
mode timer function (c.f. OC1AV bit of TCCR1D register).
USCK:
Three-wire Mode USI Clock Input.
SCL:
Two-wire Mode USI Clock Input.
● PCINT9/OC1BU/DO – Port B, Bit 1
PCINT9:
Pin Change Interrupt, source 9.
OC1BU:
Output Compare and PWM Output B-U for Timer/Counter1. The PB1 pin has to be configured as
an output (DDB1 set (one)) to serve this function. The OC1BU pin is also the output pin for the
PWM mode timer function (c.f. OC1BU bit of TCCR1D register).
DO:
Three-wire Mode USI Data Output. Three-wire mode data output overrides PORTB1 and it is driven
to the port when the data direction bit DDB1 is set. PORTB1 still enables the pull-up, if the direction
is input and PORTB1 is set (one).
● PCINT8/OC1AU/DI/SDA – Port B, Bit 0
IPCINT8:
OC1AU:
Pin Change Interrupt, source 8.
Output Compare and PWM Output A-U for Timer/Counter1. The PB0 pin has to be configured as
an output (DDB0 set (one)) to serve this function. The OC1AU pin is also the output pin for the
PWM mode timer function (c.f. OC1AU bit of TCCR1D register).
DI:
SDA:
Three-wire Mode USI Data Input. USI Three-wire mode does not override normal port functions, so
pin must be configure as an input for DI function.
Two-wire Mode Serial Interface (USI) Data Input / Output.
Table 5-27 on page 117 and Table 5-28 on page 117 relate the alternate functions of Port B to the overriding signals shown
in Figure 5-29 on page 106.
116 ATA664251 [DATASHEET]
9269E–AUTO–06/14