Table of Contents
Advertisement
M16C/64A Group
27.4.2
Repeat Mode
In repeat mode, the analog voltage applied to a selected pin is repeatedly converted to a digital code.
Table 27.10 lists Repeat Mode Specifications.
Table 27.10
Repeat Mode Specifications
Item
Function
A/D conversion start
conditions
A/D conversion stop
condition
Interrupt request
generation timing
Analog input pin
Reading of A/D conversion
result
R01UH0136EJ0210 Rev.2.10
Jul 31, 2012
Bits CH2 to CH0 in the ADCON0 register and bits ADGSEL1 to ADGSEL0
in the ADCON2 register, or bits ADEX1 to ADEX0 in the ADCON1 register
are used to select a pin. The analog voltage applied to the pin is repeatedly
converted to a digital code.
•
When the TRG bit in the ADCON0 register is 0 (software trigger)
the ADST bit in the ADCON0 register is set to 1 (A/D conversion start).
When the TRG bit is 1 ( ADTRG trigger)
•
the input level at the ADTRG pin changes from high to low after the ADST
bit is set to 1 (A/D conversion start).
Set the ADST bit to 0 (A/D conversion stop).
No interrupt requests generated
Select one pin from among AN0 to AN7, AN0_0 to AN0_7, AN2_0 to
AN2_7, ANEX0, or ANEX1.
Read the register among AD0 to AD7 that corresponds to the selected pin.
Specification
27. A/D Converter
Page 634 of 800
Advertisement
Table of Contents
