Advanced Peripheral
by Chin-Shiuh Shieh on
PC Commuinication
Keypad
DC Motor
Stepping Motor
Analog-to-Digital Conversion
- ADC0804 ADC0820
- In above circuit, any address 0xxx xxxx xxxx xxxx will address to the ADC.
- Procedure of using ADC
- "Write" to ADC to start a conversion. The conversion may take several hundred uS.
- Wait "INTR" from ADC, which indicates the finish of conversion.
- "Read" from ADC to read the converted data.
- adc01.zip
Digital-to-Analog Conversion

Io = Ir / 256 * (B1 B2 ... B8)2
- DAC0800
Character LCD
Graphic LCD
External Memory
Extended Parallel I/O
Dynamic RAM
Serial EEPROM
Flash Memory
Printer
Temperature Transducer
RF Module
Infrared Module
Telephony