SN8A1702AX datasheet(23/145 Pages) SONIX

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SN8P1700

8-bit micro-controller build-in 12-bit ADC

SONiX TECHNOLOGY CO., LTD

Page 23

Revision 1.94

2 CODE OPTION TABLE

Code Option

Content

Function Description

Low cost RC for external high clock oscillator

32K X’tal

Low frequency, power saving crystal (e.g. 32.768K) for external high

clock oscillator

12M X’tal

High speed crystal /resonator (e.g. 12M) for external high clock oscillator

High_Clk

4M X’tal

Standard crystal /resonator (e.g. 3.58M) for external high clock oscillator

Enable

External high clock divided by two, Fosc = high clock / 2

High_Clk / 2

Disable

Fosc = high clock

Enable

Enable Oscillator Safe Guard function

OSG

Disable

Disable Oscillator Safe Guard function

Enable

Enable Watch Dog function

Watch_Dog

Disable

Disable Watch Dog function

Enable

Enable the low voltage detect

LVD

Disable

Disable the low voltage detect

Enable

Enable ROM code Security function

Security

Disable

Disable ROM code Security function

Table 2-1. Code Option Table of SN8P1700

Notice : The OSG working voltage and the frequency relation table:

The min. working voltage will be affect by the OSG option. It is very important to check this code option.

Turn on the OSG will improve the EMI performance. But the side effect is an increase in the working

voltage.

OSC. Freq.(Mhz) OSG ON (Volt)

OSG OFF(Volt)

2.4

2.2

2.4

2.2

2.5

2.2

2.5

2.3

2.6

2.4

2.8

2.6

2.7

3.5

2.8

3.7

4.1

3.2

Notice : The system working frequency is only warranty under 16Mhz.

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