Datasheet

Table Of Contents
Section 17 D/A Converter
Page 620 of 846 REJ09B0140-0900 Rev. 9.00
Sep 16, 2010
H8S/2215 Group
17.2 Input/Output Pins
Table 17.1 summarizes the input and output pins of the D/A converter.
Table 17.1 Pin Configuration
Pin Name Symbol I/O Function
Analog power pin AVCC Input Analog power
Analog ground pin AVSS Input Analog ground and reference voltage
Analog output pin 0 DA0 Output Channel 0 analog output
Analog output pin 1 DA1 Output Channel 1 analog output
Reference voltage pin Vref Input Analog reference voltage
17.3 Register Description
The D/A converter has the following registers.
D/A data register (DADR)
D/A control register (DACR)
17.3.1 D/A Data Register (DADR)
DADR is an 8-bit readable/writable register that store data for conversion. Whenever output is
enabled, the values in DADR are converted and output from the analog output pins. This register
is initialized to H'00 on reset or in hardware standby mode.