SN8P1700
8-bit micro-controller build-in 12-bit ADC
SONiX TECHNOLOGY CO., LTD
Page 178
Revision 1.93
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CODE OPTION TABLE
Code Option
Content
Function Description
RC
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 14-1. 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)
1 2.4
2.2
2 2.4
2.2
4 2.5
2.2
6 2.5
2.3
8 2.6
2.4
10 2.8
2.6
12 3
2.7
16 3.5
2.8
18 3.7 3
20 4.1
3.2
Notice : The system working frequency is only warranty under 16Mhz.