25.8.2 Control B in COUNT32 mode (CTRLA.MODE=0)
Name: | CTRLB |
Offset: | 0x02 |
Reset: | 0x0000 |
Property: | Enable-Protected |
Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
ACTF[2:0] | DEBF[2:0] | ||||||||
Access | R/W | R/W | R/W | R/W | R/W | R/W | |||
Reset | 0 | 0 | 0 | 0 | 0 | 0 |
Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
DMAEN | RTCOUT | DEBASYNC | DEBMAJ | GP2EN | GP0EN | ||||
Access | R/W | R/W | R/W | R/W | R/W | R/W | |||
Reset | 0 | 0 | 0 | 0 | 0 | 0 |
Bits 14:12 – ACTF[2:0] Active Layer Frequency
Value | Name | Description |
---|---|---|
0x0 | DIV2 | CLK_RTC_OUT = CLK_RTC / 2 |
0x1 | DIV4 | CLK_RTC_OUT = CLK_RTC / 4 |
0x2 | DIV8 | CLK_RTC_OUT = CLK_RTC / 8 |
0x3 | DIV16 | CLK_RTC_OUT = CLK_RTC / 16 |
0x4 | DIV32 | CLK_RTC_OUT = CLK_RTC / 32 |
0x5 | DIV64 | CLK_RTC_OUT = CLK_RTC / 64 |
0x6 | DIV128 | CLK_RTC_OUT = CLK_RTC / 128 |
0x7 | DIV256 | CLK_RTC_OUT = CLK_RTC / 256 |
Bits 10:8 – DEBF[2:0] Debounce Frequency
Value | Name | Description |
---|---|---|
0x0 | DIV2 | CLK_RTC_DEB = CLK_RTC / 2 |
0x1 | DIV4 | CLK_RTC_DEB = CLK_RTC / 4 |
0x2 | DIV8 | CLK_RTC_DEB = CLK_RTC / 8 |
0x3 | DIV16 | CLK_RTC_DEB = CLK_RTC / 16 |
0x4 | DIV32 | CLK_RTC_DEB = CLK_RTC / 32 |
0x5 | DIV64 | CLK_RTC_DEB = CLK_RTC / 64 |
0x6 | DIV128 | CLK_RTC_DEB = CLK_RTC / 128 |
0x7 | DIV256 | CLK_RTC_DEB = CLK_RTC / 256 |
Bit 7 – DMAEN DMA Enable
Value | Description |
---|---|
0 | Tamper DMA request is disabled. Reading TIMESTAMP has no effect on INTFLAG.TAMPER. |
1 | Tamper DMA request is enabled. Reading TIMESTAMP will clear INTFLAG.TAMPER. |
Bit 6 – RTCOUT RTC Output Enable
Value | Description |
---|---|
0 | The RTC active layer output is disabled. |
1 | The RTC active layer output is enabled. |
Bit 5 – DEBASYNC Debouncer Asynchronous Enable
Value | Description |
---|---|
0 | The tamper input debouncers operate synchronously. |
1 | The tamper input debouncers operate asynchronously. |
Bit 4 – DEBMAJ Debouncer Majority Enable
Value | Description |
---|---|
0 | The tamper input debouncers match three equal values. |
1 | The tamper input debouncers match majority two of three values. |
Bit 1 – GP2EN General Purpose 2 Enable
Value | Description |
---|---|
0 | COMP1 compare function enabled. GP2/GP3 disabled. |
1 | COMP1 compare function disabled. GP2/GP3 enabled. |
Bit 0 – GP0EN General Purpose 0 Enable
Value | Description |
---|---|
0 | COMP0 compare function enabled. GP0/GP1 disabled. |
1 | COMP0 compare function disabled. GP0/GP1 enabled. |