HT86AR72 datasheet(51/68 Pages) HOLTEK

51 / 68 page

HT86Axx/HT86ARxx

Rev. 1.00

March 19, 2010

Configuration Options

Configuration options refer to certain options within the MCU that are programmed into the device during the program-

ming process. During the development process, these options are selected using the HT-IDE software development

tools. As these options are programmed into the device using the hardware programming tools, once they are selected

they cannot be changed later by the application software.

No.

Options

I/O Options

PA0~PA7: wake-up enable or disable (bit option)

PA0~PA7: pull-high enable or disable (bit option)

PB0~PB7: pull-high enable or disable (bit option)

PC0~PC7: pull-high enable or disable (bit option)

PD0~PD7: pull-high enable or disable (bit option)

PE0~PE7: pull-high enable or disable (bit option)

PD pin shared function select: select PD3~PD0 as I/O pins or as serial interface function

Oscillation Option

OSC type selection: RC or crystal

RTC: enable or disable

Interrupt Option

INT Triggering edge: Falling or both

Watchdog Options

WDT: enable or disable

WDT clock source: WDROSC or T1

CLRWDT instructions: 1 or 2 instructions

Low Voltage Reset Option

LVR select: enable or disable

Low Voltage Detect Option

LVD voltage: 2.2V~2.5V

LVD select: enable or disable

LVD voltage level control select: Register bits or configuration option

Serial interface Option

Serial interface CPOL: falling edge or rising edge

Serial interface WCOL: enable or disable

Serial interface CSEN: enable or disable

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