UPD78320GJ-5BJ NEC, UPD78320GJ-5BJ Datasheet - Page 38

• Manufacturer Part Number: UPD78320GJ-5BJ
• Description: 16/8-BIT SINGLE-CHIP MICROCONTROLLER
• Manufacturer: NEC

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3.8
equipped with eight analog inputs (AN0 to AN7) and A/D conversion result register (ADCR) which holds the conversion
results.
3.9
frequency. The baud rate generator functions for the 2-channel serial interface in common.
The PD78322 incorporates a high-speed, high-resolution 10-bit analog/digital (A/D) converter. This A/D converter is
Upon termination of conversion, the interrupt which can start the macro service is generated.
The PD78322 is equipped with the following two independent channels for the serial interface function.
Since the PD78322 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.
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
A/D CONVERTER
SERIAL INTERFACE
Asynchronous serial interface
Clocked 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
PD78320, 78322
AV
AV
REF
SS