BS2824 Holtek Semiconductor Inc., BS2824 Datasheet - Page 70

• Manufacturer Part Number: BS2824
• Description: Touch Key Mcu
• Manufacturer: Holtek Semiconductor Inc.

BS2824/BS2854/BS2868
Touch Key MCU
Configuration Options
Application Circuits
Rev. 1.00
No.
1
2
3
4
5
6
7
8
9
LVR function: enable or disable
Watchdog Timer: enable or disable
Watchdog Timer clock source: LXT, LIRC or f
Note: LXT oscillator must be selected by OSC configuration option if WDT clock source is from LXT.
CLRWDT instructions: 1 or 2 instructions
(1) For BS2854: System oscillator configuration: HXT, HIRC, ERC, HIRC + LXT
(2) For BS2868: System oscillator configuration: HXT, HIRC, ERC, HXT + LXT, HIRC + LXT, ERC + LXT
LVR voltage: 2.1V, 3.15V or 4.2V
RES or PA7 pin function
SST: 1024 or 2 clocks (determine t
Internal RC: 4MHz, 8MHz or 12MHz
Configuration options refer to certain options within the MCU that are programmed into the OTP
Program Memory device 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.
SST
for HIRC/ERC)
SYS
70
Options
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January 27, 2010