9 pcmsk0 - pin change mask register 0, Atmega128rfa1 – Rainbow Electronics ATmega128RFA1 User Manual
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8266A-MCU Wireless-12/09
ATmega128RFA1
•
Bit 7:1 – PCINT15:9 - Pin Change Enable Mask
Bits 15:9 of the PCMSK1 register have no function in this device. The I/O ports
associated to PCINT15:9 are not implemented.
•
Bit 0 – PCINT8 - Pin Change Enable Mask 8
If this bit is set to one the pin change interrupt on the corresponding I/O pin is enabled.
If this bit is set to zero the pin change interrupt is disabled.
16.2.9 PCMSK0 – Pin Change Mask Register 0
Bit
7
6
5
4
3
2
1
0
NA ($6B)
PCINT7
PCINT6
PCINT5
PCINT4
PCINT3
PCINT2
PCINT1
PCINT0
PCMSK0
Read/Write
RW
RW
RW
RW
RW
RW
RW
RW
Initial Value
0
0
0
0
0
0
0
0
Each bit PCINT7:0 selects whether the pin change interrupt is enabled on the
corresponding I/O pin. If PCINT7:0 is set and the PCIE0 bit in PCICR is set, the pin
change interrupt is enabled on the corresponding I/O pin. If PCINT7:0 is cleared, the pin
change interrupt on the corresponding I/O pin is disabled.
•
Bit 7:0 – PCINT7:0 - Pin Change Enable Mask