M16C65 Datasheet, PDF (719/829 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M16C/60

Under development
M16C/65 Group
Preliminary Specification
This is a preliminary specification and is subject to change.
28. D/A Converter
28. D/A Converter
28.1 Introduction
The D/A converter consists of two independent 8-bit R-2R type D/A converters.
Table 28.1 lists D/A Converter Specifications and Figure 28.1 shows D/A Converter Block Diagram.
Table 28.1 D/A Converter Specifications
Item
D/A conversion method
Resolution
R-2R
8 bits
Specification
Low-Order Bits of Data Bus
DA0 register
R-2R resistor ladder
DA0E bit
DA0
DA1 register
R-2R resistor ladder
DA1E bit
DA1
Figure 28.1 D/A Converter Block Diagram
Table 28.2 Input Pin
DA0
DA1
Note:
1.
Pin Name
Input/Output
Output ⁽¹⁾
Function
D/A comparator output
Set the direction bit of the ports sharing a pin to 0 (input mode). When the DAiE bit is se to 1, the
corresponding port cannot be pulled up.
REJ09B0484-0030 Rev.0.30 Sep 09, 2008
Page 684 of 791