RX610 Group
23. A/D Converter
R01UH0032EJ0120 Rev.1.20
Page 784 of 1006
Feb 20, 2013
Bit
Symbol
Bit Name
Description
R/W
b6
ADIE
A/D Interrupt Enable 0: ADI interrupt is disabled by completing A/D conversion
1: ADI interrupt is enabled by completing A/D conversion
R/W
b7
Reserved
This bit is always read as an undefined value. The write value should always
be 1.
R/W
Note:
*
The Pm.DDR.Bj bit for the analog input should be set to 0 (input port) and the Pm.ICR.Bj (m = 4 or 9, j = 0 to 7) bit should be
set to 0 (disabling the input buffer and fixing the input signal to the high level). For details, see section 14, I/O Ports.
ADCSR controls the A/D conversion operations.
CH[3:0] Bits (Channel Select)
These bits select analog input channels that allow A/D conversion.
•
Single mode (ADCR.MODE[1:0] bits = 00b)
Select the single analog input channel that allows A/D.
•
Scan mode (ADCR.MODE[1:0] bits = 10b or 11b)
Select analog input channels up to 4 that allow A/D conversion.
ADST Bit (A/D Start)
The ADST bit starts/stops A/D conversion.
Before setting the ADST bit to 1, complete the setting for A/D conversion clock and the operation mode.
[Setting conditions]
•
When 1 is written by software
•
Detection of the trigger selected by the ADCR.TRGS [2:0] bits
[Clearing conditions]
•
When 0 is written by software
•
The A/D conversion is completed in single mode
•
The A/D conversion is completed on every selected channel in single scan mode.
ADIE Bit (A/D Interrupt Enable)
The ADIE bit enables/disables the A/D conversion end interrupt (ADI).
Summary of Contents for RX600 Series
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