13.4.7 Pin Change Mask Register 1

Name: PCMSK1
Offset: 0x10
Reset: 0x00
Property: -

Bit 76543210 
     PCINT11PCINT10PCINT9PCINT8 
Access R/WR/WR/WR/W 
Reset 0000 

Bits 0, 1, 2, 3 – PCINT Pin Change Enable Mask [11:8]

Each PCINT[11:8]-bit selects whether pin change interrupt is enabled on the corresponding I/O pin. If PCINT[11:8] is set and the PCICR.PCIE1 is set, pin change interrupt is enabled on the corresponding I/O pin. If PCINT[11:8] is cleared, pin change interrupt on the corresponding I/O pin is disabled.