HT48RA3/HT48CA3

Rev. 1.30

18

October 12, 2007

Options

The following table shows all kinds of options in the MCU. All of the options must be defined to ensure proper system

functioning.

Function

PA0~PA7 wake-up enable or disable

PC pull-high enable or disable

PA pull-high enable or disable: Byte option

PF pull-high enable or disable

PB pull-high (PB0~PB3, PB4~PB7) enable or disable: Nibble option

PB0 or PFD

CLR WDT instructions

System oscillators: RC or crystal

WDT enable or disable

WDT clock source: WDTOSC or system clock/4 (T1D)

LVR function: enable or disable

LVR voltage: 2.0V or 3.0V