Control A
Name:
CTRLA
Offset:
0x00
Reset:
0x00
Access:
-
Bit
7
6
5
4
3
2
1
0
RUNSTDBY
SYNCUPD
CLKSEL[1:0]
ENABLE
Access
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
Bit 6 – RUNSTDBY: Run Standby
Run Standby
Writing a '1' to this bit will enable the peripheral to run in Standby sleep mode. Not applicable when CLKSEL is set to 0x2 (CLK_TCA).
Bit 4 – SYNCUPD: Synchronize Update
Synchronize Update
When this bit is written to '1', the TCB will restart whenever the TCA0 is restarted.
Bits 2:1 – CLKSEL[1:0]: Clock Select
Clock Select
Writing these bits selects the clock source for this peripheral.
Value
Description
0x0
CLK_PER
0x1
CLK_PER / 2
0x2
Use CLK_TCA from TCA0
0x3
Reserved
Bit 0 – ENABLE: Enable
Enable
Writing this bit to '1' enables the Timer/Counter type B peripheral.