Holtek BS82B12A-3 - Page 106

Rev. 1.20 106 January 23, 2015 Rev. 1.20 107 January 23, 2015
BS82B12A-3/BS82C16A-3/BS82D20A-3
Touch Key 8-Bit Flash MCU with LED/LCD Driver
BS82B12A-3/BS82C16A-3/BS82D20A-3
Touch Key 8-Bit Flash MCU with LED/LCD Driver
Thetouchkeysenseoscilltorandreferenceoscillatortimingdiagramisshowninthefollowing
gure:
TKST
MnKOEN
MnROEN
KEY OSC CLK
Reference OSC CLK
f
CFTMCK enable
f
CFTMCK (MnDFEN=0)
f
CFTMCK (MnDFEN=1)
TKRCOV
Set Touch Key interrupt request flag
Hardware clear to "0"
(256-TKTMR) overflow *32
 
  
  
  
  
  
   
  
 
  
   
  
 
  
   
  
 
  
   
  
Touch Key or I/O Function Select