Microchip Technology megaAVR 0 Series Manual page 275

21.12.12 Periodic Interrupt Timer Control A
Name: PITCTRLA
Offset: 0x10
Reset: 0x00
Property: -
Bit 7
Access
Reset
Bits 6:3 – PERIOD[3:0] Period
Writing this bit field selects the number of RTC clock cycles between each interrupt.
Value Name
0x0 OFF
0x1 CYC4
0x2 CYC8
0x3 CYC16
0x4 CYC32
0x5 CYC64
0x6 CYC128
0x7 CYC256
0x8 CYC512
0x9 CYC1024
0xA CYC2048
0xB CYC4096
0xC CYC8192
0xD CYC16384
0xE CYC32768
0xF -
Bit 0 – PITEN Periodic Interrupt Timer Enable
Writing a '1' to this bit enables the Periodic Interrupt Timer.
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2018 Microchip Technology Inc.
6 5
PERIOD[3:0]
R/W R/W
0 0
4 3
R/W R/W
0 0
Description
No interrupt
4 cycles
8 cycles
16 cycles
32 cycles
64 cycles
128 cycles
256 cycles
512 cycles
1024 cycles
2048 cycles
4096 cycles
8192 cycles
16384 cycles
32768 cycles
Reserved
Datasheet Preliminary
®
megaAVR 0-Series
Real-Time Counter (RTC)
2 1
DS40002015A-page 275
0
PITEN
R/W
0