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H8SX/1663 数据表(PDF) 920 Page - Renesas Technology Corp |
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H8SX/1663 数据表(HTML) 920 Page - Renesas Technology Corp |
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920 / 1158 page  Section 19 D/A Converter Rev.1.00 Jun. 07, 2006 Page 868 of 1102 REJ09B0294-0100 19.2 Input/Output Pins Table 19.1 shows the pin configuration of the D/A converter. Table 19.1 Pin Configuration Pin Name Symbol I/O Function Analog power supply pin AVCC Input Analog block power supply Analog ground pin AVSS Input Analog block ground Reference voltage pin Vref Input D/A conversion reference voltage Analog output pin 0 DA0 Output Channel 0 analog output Analog output pin 1 DA1 Output Channel 1 analog output 19.3 Register Descriptions The D/A converter has the following registers. • D/A data register 0 (DADR0) • D/A data register 1 (DADR1) • D/A control register 01 (DACR01) 19.3.1 D/A Data Registers 0 and 1 (DADR0 and DADR1) DADR0 and DADR1 are 8-bit readable/writable registers that store data to which D/A conversion is to be performed. Whenever an analog output is enabled, the values in DADR are converted and output to the analog output pins. 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W Bit Bit Name Initial Value R/W |
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