24.11.8 Count

The RTC.CNTL and RTC.CNTH register pair represents the 16-bit value, CNT. The low byte [7:0] (suffix L) is accessible at the original offset. The high byte [15:8] (suffix H) can be accessed at offset + 0x01. For more details on reading and writing 16-bit registers, refer to Accessing 16-bit Registers in the CPU chapter.

Due to synchronization between the RTC clock and system clock domains, there is a latency of two RTC clock cycles from updating the register until this has an effect. Application software needs to check that the CNTBUSY flag in RTC.STATUS is cleared before writing to this register.

Name: CNT
Offset: 0x08
Reset: 0x00
Property: -

Bit 15141312111098 
 CNT[15:8] 
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00000000 
Bit 76543210 
 CNT[7:0] 
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00000000 

Bits 15:8 – CNT[15:8] Counter High Byte

These bits hold the MSB of the 16-bit Counter register.

Bits 7:0 – CNT[7:0] Counter Low Byte

These bits hold the LSB of the 16-bit Counter register.