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Rev.2.10 Apr 14, 2006 page 212 of 378
REJ09B0124-0210
M16C/6N Group (M16C/6NK, M16C/6NM) 16. A/D Converter
16.1.4 Repeat Sweep Mode 0
In repeat sweep mode 0, analog voltage applied to selected pins is repeatedly converted to a digital code.
Table 16.5 lists the Repeat Sweep Mode 0 Specifications. Figure 16.7 shows Registers ADCON0 and
ADCON1 in Repeat Sweep Mode 0.
Table 16.5 Repeat Sweep Mode 0 Specifications
Item Specification
Function Bits SCAN1 to SCAN0 in the ADCON1 register and bits ADGSEL1 to ADGSEL0
in the ADCON2 register select pins. Analog voltage applied to the pins is
repeatedly converted to a digital code.
A/D conversion When the TRG bit in the ADCON0 register is 0 (software trigger)
start condition The ADST bit in the ADCON0 register is set to 1 (A/D conversion starts)
_____________
When the TRG bit is 1 (ADTRG trigger)
_____________
Input on the ADTRG pin changes state from high to low after the ADST
bit is set to 1 (A/D conversion starts)
A/D conversion Set the ADST bit to 0 (A/D conversion halted)
stop condition
Interrupt request None generated
generation timing
Analog input pin Select from AN0 to AN1 (2 pins), AN0 to AN3 (4 pins), AN0 to AN5 (6 pins),
AN0 to AN7 (8 pins)
(1)
Reading of result of Read one of registers AD0 to AD7 that corresponds to the selected pin
A/D converter
NOTE:
1. AN0_0 to AN0_7, and AN2_0 to AN2_7 can be used in the same way as AN0 to AN7.
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