Rainbow-electronics ATmega64C1 Manuel d'utilisateur télécharger pdf (Page 85)

7647A–AVR–02/08

ATmega32/64/M1/C1

10.2.6 Pin Change Mask Register 2 – PCMSK2

• Bit 7..0 – PCINT23..16: Pin Change Enable Mask 23..16

Each PCINT23..16-bit selects whether pin change interrupt is enabled on the corresponding I/O

pin. If PCINT23..16 is set and the PCIE2 bit in PCICR is set, pin change interrupt is enabled on

the corresponding I/O pin. If PCINT23..16 is cleared, pin change interrupt on the corresponding

I/O pin is disabled.

10.2.7 Pin Change Mask Register 1 – PCMSK1

• Bit 7 – Res: Reserved Bit

This bit is an unused bit in the ATmega32/64/M1/C1, and will always read as zero.

• Bit 7..0 – PCINT15..8: Pin Change Enable Mask 15..8

Each PCINT15..8-bit selects whether pin change interrupt is enabled on the corresponding I/O

pin. If PCINT15..8 is set and the PCIE1 bit in PCICR is set, pin change interrupt is enabled on

the corresponding I/O pin. If PCINT15..8 is cleared, pin change interrupt on the corresponding

I/O pin is disabled.

10.2.8 Pin Change Mask Register 0 – PCMSK0

• Bit 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 PCICR 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

PCINT23 PCINT22 PCINT21 PCINT20 PCINT19 PCINT18 PCINT17 PCINT16 PCMSK2

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

Initial Value00000000

Bit 76543210

PCINT15 PCINT14 PCINT13 PCINT12 PCINT11 PCINT10 PCINT9 PCINT8 PCMSK1

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

Initial Value00000000

Bit 76543210

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

1 2 ... 80 81 82 83 84 85 86 87 88 89 90 ... 365 366

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Rainbow-electronics ATmega64C1 Manuel d'utilisateur Page 85