m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 353

• Manufacturer Part Number: m37905
• Description: Mitsubishi 16-bit Single-chip Microcomputer 7700 Family / 7900 Series
• Manufacturer: Renesas Electronics Corporation.

D-A converters convert the values loaded in D-A register i (i = 0, 1) to analog voltages and output them from
pin DA
described below.
D-A CONVERTER
13.1 Overview, 13.2 Block description
13.1 Overview
The M37905 is provided with two independent D-A converters of the R-2R type with 8-bit resolution. These
13.2 Block description
Figure 13.2.1 shows the block diagram of the D-A converter. The registers related to the D-A converter are
Fig. 13.2.1 D-A converter block diagram
13-2
i
.
AV
V
REF
SS
7905 Group User’s Manual Rev.1.0
R-2R ladder network
Data bus
DA
i
D-A
i
output enable bit
(Addresses 98
D-A register i (i = 0, 1)
16
, 99
16
)