CHAPTER 9 A/D CONVERTER
User’s Manual U11969EJ3V0UM00
297
9.3 Control Register
(1) A/D converter mode register 0 (ADM0)
The ADM0 register is an 8-bit register which executes the selection of the analog input pin, specification of
the operation mode, and conversion operations.
This register can be read/written in 8- or 1-bit units, However, when the data is written to the ADM0 register
during A/D conversion operations, the conversion operation is initialized and conversion is executed from the
beginning. Bit 6 cannot be written in and writing executed is ignored.
Bit Position
Bit Name
Function
7
CE
Convert Enable
Enables or disables A/D conversion operation.
0: Disabled
1: Enabled
6
CS
Converter Status
Indicates the status of A/D converter. This bit is read only.
0: Stops
1: Operates
5
BS
Buffer Select
Specifies buffer mode in the select mode.
0: 1-buffer mode
1: 4-buffer mode
4
MS
Mode Select
Specifies operation mode of A/D converter.
0: Scan mode
1: Select mode
3
PS
Pin Select
Switches the analog input pin.
0: Selects ANI0 to ANI7
1: Selects ANI8 to ANI15
Address
FFFFF380H
7
CE
ADM0
6
CS
5
BS
4
MS
3
PS
2
ANIS2
1
ANIS1
0
ANIS0
After reset
00H
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