### ACS_RTC_CFG

Bit Field | Read/Write | Field Name | Description
--- | --- | --- | ---
6:4 | RW | RTC_CLOCK_SRC | Select the RTC Clock event source
2:0 | RW | CLK_SRC_SEL | Select the RTC, standby, bb timer, and sensor block clock source

Bit Field | Field Name | Value Symbol | Value Description | Hex Value
--- | --- | --- | --- | ---
6:4 | RTC_CLOCK_SRC | RTC_CLOCK_62MS | RTC clock on counter bit 10 rising edge (62 ms) | 0x0*
|  | RTC_CLOCK_125MS | RTC clock on counter bit 11 rising edge (125 ms) | 0x1
|  | RTC_CLOCK_250MS | RTC clock on counter bit 12 rising edge (250 ms) | 0x2
|  | RTC_CLOCK_500MS | RTC clock on counter bit 13 rising edge (500 ms) | 0x3
|  | RTC_CLOCK_1S | RTC clock on counter bit 14 rising edge (1 s) | 0x4
|  | RTC_CLOCK_2S | RTC clock on counter bit 15 rising edge (2 s) | 0x5
|  | RTC_CLOCK_4S | RTC clock on counter bit 16 rising edge (4 s) | 0x6
|  | RTC_CLOCK_8S | RTC clock on counter bit 17 rising edge (8 s) | 0x7
2:0 | CLK_SRC_SEL | RTC_CLK_SRC_STANDBY_CLK | Select standby clock that runs at 32kHz as clock source | 0x0*
|  | RTC_CLK_SRC_GPIO0 | Select GPIO[0] as clock source | 0x1
|  | RTC_CLK_SRC_GPIO1 | Select GPIO[1] as clock source | 0x2
|  | RTC_CLK_SRC_GPIO2 | Select GPIO[2] as clock source | 0x3
|  | RTC_CLK_SRC_GPIO3 | Select GPIO[3] as clock source | 0x4
|  | RTC_CLK_SRC_NO_CLOCK | Set RTC clock to constant value 0 | 0x5