ATAVRSB202 Atmel, ATAVRSB202 Datasheet - Page 60
ATAVRSB202
Manufacturer Part Number
ATAVRSB202
Description
KIT BATT MGMT FOR ATMEGA32HVB
Manufacturer
Atmel
Specifications of ATAVRSB202
Main Purpose
*
Embedded
*
Utilized Ic / Part
*
Primary Attributes
*
Secondary Attributes
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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13.2.4
13.2.5
13.2.6
8042B–AVR–06/10
PCICR – Pin Change Interrupt Control Register
PCIFR – Pin Change Interrupt Flag Register
PCMSK1 – Pin Change Mask Register 1
• Bits 7:2 – Reserved
These bits are reserved in the ATmega16HVB/32HVB, and will always read as zero.
• Bit 1 – PCIE1: Pin Change Interrupt Enable 1
When the PCIE1 bit is set (one) and the I-bit in the Status Register (SREG) is set (one), pin
change interrupt 1 is enabled. Any change on any enabled PCINT11..4 pin will cause an inter-
rupt. The corresponding interrupt of Pin Change Interrupt Request is executed from the PCI1
Interrupt Vector. PCINT11..4 pins are enabled individually by the PCMSK1 Register.
• Bit 0 – PCIE0: Pin Change Interrupt Enable 0
When the PCIE0 bit is set (one) and the I-bit in the Status Register (SREG) is set (one), pin
change interrupt 0 is enabled. Any change on any enabled PCINT3..0 pin will cause an interrupt.
The corresponding interrupt of Pin Change Interrupt Request is executed from the PCI0 Interrupt
Vector. PCINT3..0 pins are enabled individually by the PCMSK0 Register.
• Bits 7:2 – Reserved
These bits are reserved in the ATmega16HVB/32HVB, and will always read as zero.
• Bit 1 – PCIF1: Pin Change Interrupt Flag 1
When a logic change on any PCINT11..4 pin triggers an interrupt request, PCIF1 becomes set
(one). If the I-bit in SREG and the PCIE1 bit in EIMSK are set (one), the MCU will jump to the
corresponding Interrupt Vector. The flag is cleared when the interrupt routine is executed. Alter-
natively, the flag can be cleared by writing a logical one to it.
• Bit 0 – PCIF0: Pin Change Interrupt Flag 0
When a logic change on any PCINT3:0 pin triggers an interrupt request, PCIF0 becomes set
(one). If the I-bit in SREG and the PCIE0 bit in EIMSK are set (one), the MCU will jump to the
corresponding Interrupt Vector. The flag is cleared when the interrupt routine is executed. Alter-
natively, the flag can be cleared by writing a logical one to it.
Bit
(0x68)
Read/Write
Initial Value
Bit
0x1B (0x3B)
Read/Write
Initial Value
Bit
(0x6C)
Read/Write
Initial Value
PCINT11
R/W
7
0
R
R
7
–
0
7
–
0
PCINT10
R/W
6
0
R
R
6
–
0
6
–
0
PCINT9
R/W
5
0
R
R
5
–
0
5
–
0
PCINT8
R/W
4
0
R
R
4
–
0
4
–
0
PCINT7
R/W
ATmega16HVB/32HVB
3
0
R
R
3
–
0
3
–
0
PCINT6
R/W
2
0
R
R
2
–
0
2
–
0
PCINT5
PCIE1
PCIF1
R/W
R/W
R/W
1
0
1
0
1
0
PCINT4
PCIE0
PCIF0
R/W
R/W
R/W
0
0
0
0
0
0
PCMSK1
PCICR
PCIFR
60
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