UPD78F1502AGK-GAK-AX Datasheet, PDF (434/1031 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcontrollers

78K0R/Lx3
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CHAPTER 11 D/A CONVERTER (μ PD78F150xA only)
CHAPTER 11 D/A CONVERTER (μ PD78F150xA only)
11.1 Function of D/A Converter
The D/A converter with two channels is mounted onto all 78K0R/Lx3 microcontroller products.
The D/A converter has the following features.
{ 12-bit resolution × 2 channels
{ R-2R ladder method
{ Output analog voltage
• 12-bit resolution: Reference voltage for D/A converter × m12/4096 (m12: Value set to DACSWn register)
• 8-bit resolution: Reference voltage for D/A converter × m8/256 (m8: Value set to DACSn register)
{ Supply voltage for D/A converter: AVDD1
{ Ground for D/A converter:
AVSS
{ Positive reference voltage for D/A converter:
{ Negative reference voltage for D/A converter:
{ Operation mode
AVDD1, or AVREFP/VREFOUT
AVSS
• Normal mode
• Real-time output mode
Remark n = 0, 1
11.2 Configuration of D/A Converter
The D/A converter includes the following hardware.
Table 11-1. Configuration of D/A Converter
Item
Control registers
Configuration
Peripheral enable register 0 (PER0)
D/A converter mode register (DAM)
D/A conversion value setting registers W0, W1 (DACSW0, DACSW1)
D/A conversion value setting registers 0, 1 (DACS0, DACS1)
R01UH0004EJ0501 Rev.5.01
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Jun 20, 2011