HT46R49 Holtek Semiconductor, HT46R49 Datasheet - Page 45

• Manufacturer Part Number: HT46R49
• Description: Cost-Effective A/D Type 8-Bit MCU
• Manufacturer: Holtek Semiconductor

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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.
Application Circuits
Rev. 1.30
No.
1
2
3
4
5
6
7
8
9
Watchdog Timer clock source: WDT oscillator or f
Watchdog Timer function: enable or disable
CLRWDT instructions: 1 or 2 instructions
System oscillator: Crystal or RC
PA, PB and PD: pull-high enable or disable
PC: pull-high enable or disable - HT46R48A and HT46R49 only
PWM: enable or disable - Except HT46R49
PWM0, PWM1: enable or disable - HT46R49 only
PA0~PA7: wake-up enable or disable - bit option
PFD: normal I/O or PFD output
LVR function: enable or disable
HT46R46/C46/R47/C47/R48A/C48A/R49
45
Options
SYS
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June 5, 2008