Preliminary
SN8P1702A/SN8P1703A
8-bit micro-controller build-in 12-bit ADC
2CODE OPTION TABLE
Code Option
Content
Function Description
RC
Low cost RC for external high clock oscillator
Low frequency, power saving crystal (e.g. 32.768K) for external high
clock oscillator
32K X’tal
High_Clk
12M X’tal
4M X’tal
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Disable
8-bit
High speed crystal /resonator (e.g. 12M) for external high clock oscillator
Standard crystal /resonator (e.g. 3.58M) for external high clock oscillator
External high clock divided by two, Fosc = high clock / 2
Fosc = high clock
Enable Oscillator Safe Guard function
Disable Oscillator Safe Guard function
Enable Watch Dog function
High_Clk / 2
OSG
Watch_Dog
Security
Disable Watch Dog function
Enable ROM code Security function
Disable ROM code Security function
TC0 as 8-bit counter.
6-bit
5-bit
4-bit
8-bit
6-bit
5-bit
TC0 as 6-bit counter.
TC0 as 5-bit counter.
TC0 as 4-bit counter.
TC1 as 8-bit counter.
TC1 as 6-bit counter.
TC1 as 5-bit counter.
TC0_Counter
TC1_Counter
4-bit
TC1 as 4-bit counter.
Enable
Disable
Enable
Disable
Enable Noise Filter function to enhance EMI performance
Disable Noise Filter function
Enable Low Power function to save Operating current
Disable Low Power function
Noise Filter
Low Power
Force Watch Dog Timer clock source come from INT 16K RC.
Also INT 16K RC never stop both in power down and green mode that
means Watch Dog Timer will always enable both in power down and
green mode.
Always ON
INT_16K_RC
By_CPUM
Enable or Disable internal 16K(at 3V) RC clock by CPUM register
Table 2-1. Code Option Table of SN8P1702A/SN8P1703A
Notice:
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In high noisy environment, enable “Noise Filter”, “OSG” and disable “Low Power” is strongly
recommended.
The side effect is to increase the lowest valid working voltage level if enable “Noise Filter” or
“OSG” or “Low Power” code option.
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Enable “Low Power” option will reduce operating current except in 32K X’tal or slow mode.
If users select “32K X’tal” in “High_Clk” option, assembler will force “OSG” to be enabled.
If users select “RC” in “High_Clk” option, assembler will force “High_Clk / 2” to be enabled.
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