HT46R46/C46/R47/C47/R48/R49
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 as the application software has no control over the configuration options. All options must
be defined for proper system function, the details of which are shown in the table.
No.
1
Options
Watchdog Timer clock source: WDT oscillator or fSYS/4
Watchdog Timer function: enable or disable
CLRWDT instructions: 1 or 2 instructions
System oscillator: Crystal or RC
2
3
4
PA, PB and PD: pull-high enable or disable
5
6
PC: pull-high enable or disable - HT46R48 and HT46R49 only
PWM: enable or disable - Except HT46R49
PWM0, PWM1: enable or disable - HT46R49 only
7
8
9
PA0~PA7: wake-up enable or disable - bit option
PFD: normal I/O or PFD output
LVR function: enable or disable
Rev. 1.00
45
April 18, 2007
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
