SN8P1602A datasheet(13/76 Pages) SONIX

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SN8P1602B

8-Bit Micro-Controller

SONiX TECHNOLOGY CO., LTD

Page 13

Version 1.1

2 CODE OPTION TABLE

SN8P1602B

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 to enhance noise immunity

performance.

OSG

Disable

Disable Oscillator Safe Guard function

Enable

Enable Watch Dog function

Watch_Dog

Disable

Disable Watch Dog function

Enable

Enable Low Power function to save Operating current

Low Power

Disable

Disable Low Power function

Enable

Enable Noise Filter function to enhance noise immunity performance

Noise Filter

Disable

Disable Noise Filter function

Enable

Enable ROM code Security function

Security

Disable

Disable ROM code Security function

Always_ON

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.

INT_16K_RC

By_CPUM

Enable or Disable internal 16K(at 3V) RC clock by CPUM register

Table 2-1 SN8P1602B Code Option Table

This table is for design guidance, not tested or guaranteed. Some values presented are outside specified operating

range. This is for information only and devices are guaranteed to operate properly only within the specified range.

Code Option

Lowest Operation Voltage

Enable

Disable

4 MHz

16 MHz

Noise Filter/Low Power/OSG

2.2V

2.8V

Noise Filter

Low Power/OSG

2.2V

3.5V

Low Power

Noise Filter/OSG

2.2V

3.8V

OSG

Noise Filter/Low Power

2.2V

2.9V

Table 2-2 SN8P1602B Minimum Working Voltage vs. Code Option and clock frequency

Notice:

Under high noisy environment, enable “Noise Filter”, “OSG” and disable “Low Power” is strongly

recommended.

The side effect is to increase the minimum working voltage if enables “Noise Filter”/“OSG”/ “Low Power”

code option. (Please refer to Characteristic Graphs)

Enable “Low Power” option will reduce operating current during the normal operating 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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