Datasheet

8246A–AVR–11/09

ATtiny2313A/4313

• Bits 7:3 – Res: Reserved Bits

These bits are reserved and will always read as zero.

• Bits 2..0 – PCINT10..8: Pin Change Enable Mask 10..8

Each PCINT10..8 bit selects whether pin change interrupt is enabled on the corresponding I/O

pin. If PCINT10..8 is set and the PCIE1 bit in GIMSK is set, pin change interrupt is enabled on

the corresponding I/O pin. If PCINT10..8 is cleared, pin change interrupt on the corresponding

I/O pin is disabled.

9.3.6 PCMSK0 – Pin Change Mask Register 0

• Bits 7..0 – PCINT7..0: Pin Change Enable Mask 7..0

Each PCINT7..0 bit selects whether pin change interrupt is enabled on the corresponding I/O

pin. If PCINT7..0 is set and the PCIE0 bit in GIMSK is set, pin change interrupt is enabled on the

corresponding I/O pin. If PCINT7..0 is cleared, pin change interrupt on the corresponding I/O pin

is disabled.

Bit 76543210

0x20 (0x40) PCINT7 PCINT6 PCINT5 PCINT4 PCINT3 PCINT2 PCINT1 PCINT0 PCMSK0

Read/Write R/W R/W R/W R/W R/W R/W R/W R/W

Initial Value 0 0 0 0 0 0 0 0