UPD78323 NEC, UPD78323 Datasheet - Page 37

• Manufacturer Part Number: UPD78323
• Description: 16/8-BIT SINGLE-CHIP MICROCONTROLLER
• Manufacturer: NEC

3.9
frequency. The baud rate generator functions for the 2-channel serial interface.
3.8
equipped with eight analog inputs (AN0 to AN7) and A/D conversion result register (ADCR) which holds the conversion
results. Upon termination of conversion, the interrupt which can start the macro service is generated.
The PD78324 incorporates a high-speed, high-resolution 10-bit analog/digital (A/D) converter. This A/D converter is
The PD78324 is equipped with the following two independent channels for the serial interface function.
Since the PD78324 incorporates a baud rate generator, it can set any serial transfer rate irrespective of the operating
The serial transfer rate can be selected from 75 bps to 19.2 Kbps by setting the mode register.
SERIAL INTERFACE
A/D CONVERTER
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
Asynchronous serial interface
Clock synchronous serial interface
• 3-wire serial I/O mode
• Serial bus interface mode (SBI mode)
Internal Bus
ADM (8)
8
Sample & Hold Circuit
Figure 3-5. A/D Converter Block Diagram
Internal Bus
ADCR (10)
SAR (10)
10
10
Comparator
10
D/A Converter
PD78323, 78324
AV
AV
REF
SS
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