23.11.11 Periodic Interrupt Timer Control A

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

Bit 76543210 
  PERIOD[3:0]  PITEN 
Access R/WR/WR/WR/WR/W 
Reset 00000 

Bits 6:3 – PERIOD[3:0] Period

Writing this bit field selects the number of RTC clock cycles between each interrupt.
ValueNameDescription
0x0 OFF No interrupt
0x1 CYC4 4 cycles
0x2 CYC8 8 cycles
0x3 CYC16 16 cycles
0x4 CYC32 32 cycles
0x5 CYC64 64 cycles
0x6 CYC128 128 cycles
0x7 CYC256 256 cycles
0x8 CYC512 512 cycles
0x9 CYC1024 1024 cycles
0xA CYC2048 2048 cycles
0xB CYC4096 4096 cycles
0xC CYC8192 8192 cycles
0xD CYC16384 16384 cycles
0xE CYC32768 32768 cycles
0xF - Reserved

Bit 0 – PITEN Periodic Interrupt Timer Enable

Writing a '1' to this bit enables the periodic interrupt timer.