CHAPTER 12 A/D CONVERTER
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12.3 Control Registers
(1) A/D converter mode register 0 (ADM0)
The ADM0 register is an 8-bit register that selects the analog input pin, specifies the operation mode, and
executes conversion operations.
This register can be read/written in 8-bit or 1-bit units. However, when data is written to the ADM0 register
during an A/D conversion operation, the conversion operation is initialized and conversion is executed from
the beginning. Bit 6 cannot be written to and writing executed is ignored.
Cautions 1. When the ADCE bit is 1 in the timer trigger mode and external trigger mode, the trigger
signal standby state is set. To clear the ADCE bit, write “0” or reset.
In the A/D trigger mode, the conversion trigger is set by writing 1 to the ADCE bit. After
the operation, when the mode is changed to the timer trigger mode or external trigger
mode without clearing the ADCE bit, the trigger input standby state is set immediately
after the change.
2. There are 10 clocks between the beginning of conversion and when the ADCS bit
becomes 1.
