UPD78F1502AGK-GAK-AX Datasheet, PDF (435/1031 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcontrollers

78K0R/Lx3
CHAPTER 11 D/A CONVERTER (μ PD78F150xA only)
Figure 11-1. Block Diagram of D/A Converter
Internal bus
Write signal of DACSW0 register
or write signal of DACS0
DAMD0
DARES0
D/A conversion value
setting register
(DACSW0 or DACS0)
INTTM04 signal
AVDD1
VRON, VRGV bit
AVREFP/VREFOUT
Voltege reference
circuit
VRSEL bit
AVSS
DACE0
DAREFP
DAREFM
Selector
Write signal of DACSW1 register
or write signal of DACS1
DAMD1
INTTM05 signal
DACE1
Selector
D/A conversion value
setting register
(DACSW1 or DACS1)
ANO0/P110
ANO1/P111
DAREF DACE1 DACE0 DARES1 DARES0 DAMD1 DAMD0
D/A converter mode register (DAM)
Internal bus
Remarks 1. INTTM04 and INTTM05 are timer trigger signals (interrupt signals from timer channels 5 and 6) that are
used in the real-time output mode.
2. Channels 0 and 1 of the D/A converter share the AVREF1 pin and the AVREFP/VREFOUT pin.
3. Channels 0 and 1 of the D/A converter share the AVSS pin. The AVSS pin is also shared with an A/D
converter, an operational amplifier, and a voltage reference.
R01UH0004EJ0501 Rev.5.01
419
Jun 20, 2011