HT46R01/HT46R02/HT46R03
Configuration Options
Configuration options refer to certain options within the MCU that are programmed into the OTP Program Memory de-
vice during the programming 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. All options must be defined for proper
system function, the details of which are shown in the table.
No.
1
Options
Watchdog Timer: enable or disable
2
Watchdog Timer clock source: WDT internal oscillator, fSYS/4 or RTC
CLRWDT instructions: 1 or 2 instructions
System oscillator: Internal RC, Internal RC with external RTC, External Crystal, External RC
LVR function: enable or disable
3
4
5
6
LVR voltage: 2.1V, 3.15V or 4.2V
7
RES or PA7
8
SST: enable or disable
Application Circuits
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Rev. 1.00
45
September 21, 2007
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
