D/A Converter Control Registers; D/A Converter Mode Register Format - NEC PD78056F User Manual

15.3 D/A Converter Control Registers

The D/A converter mode register (DAM) controls the D/A converter. This register sets D/A converter operation
enable/stop.
The DAM is set with a 1-bit or 8-bit memory manipulation instruction.
RESET input sets this register to 00H.
7 6 5
Symbol
0 0 DAM5 DAM4
DAM
Cautions 1. When using the D/A converter, a dual-function port pin should be set to the input mode, and
a pull-up resistor should be disconnected.
2. Always set bits 2, 3, 6, and 7 to 0.
3. When D/A conversion is stopped, the output state is high-impedance.
4. The output triggers are INTTM1 and INTTM2 for channel 0 and channel 1, respectively, in the
real-time output mode.
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CHAPTER 15 D/A CONVERTER
Figure 15-2. D/A Converter Mode Register Format
4 3 2 1 0
0 0 DACE1 DACE0
After
Address
Reset
FF98H 00H
DACE0 D/A Converter Channel 0 Control
0 D/A conversion stop
1 D/A conversion enable
DACE1 D/A Converter Channel 1 Control
0 D/A conversion stop
1 D/A conversion enable
DAM4 D/A Converter Channel 0 Operating Mode
0 Normal mode
1 Real-time output mode
DAM5
D/A Converter Channel 1 Operating Mode
0 Normal mode
1 Real-time output mode
R/W
R/W