Chapter 14
A/D Converter
XIV - 2 Overview
14.1 Overview
This LSI has an A/D converter with 10 bit resolutions and up to 16-channel analog signals can be processed with
3 converters. It contains a built-in sample hold circuit. 6 types of conversion reference clocks can be switched by
software.
14.1.1 Functions
Table: 14.1.1 shows the A/D converter functions.
Table:14.1.1 A/D Converter Functions
AD0AD1AD2Page
Interrupt cause AD0IRQ, AD0IRQB AD1IRQ, AD1IRQB AD2IRQ -
Numbers of analog
input pins
Max. 6 pins Max. 8 pins Max. 10 pins -
Resolution\ 10 bits -
A/D converter clock
selection
IOCLK × 1
IOCLK × 2
IOCLK × 3
IOCLK × 4
IOCLK × 8
IOCLK × 16
-
Sampling/hold time 1 cycle
2 cycles
4 cycles
6 cycles
XIV-28
Conversion time Set to over 1.0 µs -
Input range V
SS
to V
DD
-
Operation mode 6 types 6 types 22 types XIV-28
Conversion start trigger Register set by instruction
PWM0 underflow
PWM0 overflow
PWM1 underflow
PWM1 overflow
Timer 12 compare A
Timer 12 compare B
Timer 13 compare A
Timer 13 compare B
Register set by instruction
PWM0 underflow
PWM0 overflow
PWM1 underflow
PWM1 overflow
Timer 12 compare A
Timer 12 compare B
Timer 13 compare A
Timer 13 compare B
Register set by instruction
PWM0 underflow
PWM0 overflow
PWM1 underflow
PWM1 overflow
Timer 12 compare A
Timer 12 compare B
Timer 13 compare A
Timer 13 compare B
XIV-28
To Next Page
Loading...
