SN8P1602AS datasheet(78/94 Pages) SONIX

78 / 94 page

SN8P1600

8-bit micro-controller

SONiX TECHNOLOGY CO., LTD

Page 78

Revision 1.94

SN8P1604

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 function

LVD

Disable

Disable the low voltage detect function

Enable

Enable ROM code Security function

Security

Disable

Disable ROM code Security function

Enable

Enable on-chip pull-up resisters

Pull_Up

Disable

Disable on-chip pull-up resisters

Notice:

The LVD function can improve the power on reset and brown-out reset performance. It will

increase about extra 100

µA current consumption at 5V if LVD is enabled. The minimum 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 to increase the lowest

valid working voltage level.

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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