Input/Output Pins; Register Descriptions; D/A Data Registers 0 And 1 (Dadr0, Dadr1); D/A Control Register (Dacr) - Renesas H8S/2158 User Manual

Section 21 D/A Converter
21.2

Input/Output Pins

Table 21.1 summarizes the input/output pins used by the D/A converter.

Table 21.1 Pin Configuration

Pin Name
Analog power supply pin
Analog ground pin
Analog output pin 0
Analog output pin 1
Reference power supply
pin
21.3

Register Descriptions

The D/A converter has the following registers.
• D/A data register 0 (DADR0)
• D/A data register 1 (DADR1)

• D/A control register (DACR)

21.3.1

D/A Data Registers 0 and 1 (DADR0, DADR1)

DADR0 and DADR1 are 8-bit readable/writable registers that store data for D/A conversion.
When analog output is permitted, D/A data register contents are converted and output to analog
output pins.
21.3.2 D/A Control Register (DACR)
DACR controls D/A converter operation.
Rev. 3.00 Jan 25, 2006 page 692 of 872
REJ09B0286-0300
Symbol I/O
AVCC Input
AVSS Input
DA0 Output
DA1 Output
AVref Input
Function
Analog block power supply
Analog block ground and reference voltage
Channel 0 analog output
Channel 1 analog output
Analog block reference voltage