SH7706 Datasheet, PDF (598/749 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family/SH7700 Series

Section 20 D/A Converter (DAC)
20.2 Input/Output Pin
Table 20.1 summarizes the D/A converter's input and output pins.
Table 20.1 D/A Converter Pins
Pin Name
Analog power-supply pin
Analog ground pin
Analog output pin 0
Analog output pin 1
Abbreviation
AVcc
AVss
DA0
DA1
I/O
Input
Input
Output
Output
Function
Analog power supply
Analog ground and reference voltage
Analog output, channel 0
Analog output, channel 1
20.3 Register Description
The D/A converter has the following registers. Refer to section 23, List of Registers, for more
details of the addresses and access sizes.
• D/A data register 0 (DADR0)
• D/A data register 1 (DADR1)
• D/A control register (DACR)
20.3.1 D/A Data Registers 0 and 1 (DADR0 and DADR1)
The D/A data registers (DADR0 and DADR1) are 8-bit read/write registers that store the data to
be converted. When analog output is enabled, the D/A data register values are constantly
converted and output at the analog output pins.
The D/A data registers are initialized to H'00 by a reset.
20.3.2 D/A Control Register (DACR)
DACR is an 8-bit read/write register that controls the operation of the D/A converter.
Rev. 5.00 May 29, 2006 page 550 of 698
REJ09B0146-0500