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ABOV Semiconductor
AC30M1x64/1x32
When the De-Bounce functions of Input Data is used by Debounce Enable Register. External input data captured by Debounce CLK.
-
If CNT Value is “01”, Debounced Input Data is “1”.
-
If CNT Value is “10”, Debounced Input Data is “0”
Can change the Debounce CLK of each port group used by MCCR4~5 Register.
2-bit
UP/DOWN
Counter
External Input
(PORT in)
UP=1/DOWN=0
FF
CNT[1:0]
CLK
Debounce Clock
Internal Input
CNT[1:0]==01
à
’1'
CNT[1:0]==10
à
’0'
Counter operation)
If (PORT In==’1' && CNT[1:0]!=01)
CNT[1:0]++ //UP
Else if (PORT In==’0' && CNT[1:0]!=10)
CNT[1:0]-- //DOWN
Figure 2.5. Debounce Logic
External Input
(PORT in)
CNT[1:0]
01b
00b
11b
10b
Internal Input
(Debounced in)
Debounce CLK
1
1
1
1
0
1
0
0
0
1
0
1
1
0
FF=1 FF=1
FF=1
FF=1
FF=0
1
1
1
1
1
1
1
0
0
0
0
0
0
0
Figure 2.6. Port Debounce Example
Summary of Contents for AC30M1x32
Page 3: ...3 246 ABOV Semiconductor INTRODUCTION SECTION 1 INTRODUCTION ...
Page 4: ...4 246 4 246 AC30M1x64 1x32 ABOV Semiconductor OVERVIEW CHAPTER 1 ...
Page 18: ...18 246 18 246 ABOV Semiconductor AC30M1x64 1x32 CPU CHAPTER 2 ...
Page 22: ...22 246 22 246 ABOV Semiconductor AC30M1x64 1x32 Boot Mode CHAPTER 3 ...
Page 26: ...26 246 26 246 ABOV Semiconductor AC30M1x64 1x32 SECTION 2 PERIPHERALS ...
Page 27: ...27 246 ABOV Semiconductor System Control Unit SCU SYSTEM CONTROL UNIT SCU CHAPTER 1 ...
Page 69: ...69 246 ABOV Semiconductor Port Control Unit PCU PORT CONTROL UNIT PCU CHAPTER 2 ...
Page 85: ...85 246 ABOV Semiconductor General Purpose I O GPIO GENERAL PURPOSE I O GPIO CHAPTER 3 ...
Page 92: ...92 246 92 246 AC30M1x64 1x32 ABOV Semiconductor FLASH MEMORY CONTROLLER CHAPTER 4 ...
Page 105: ...105 246 ABOV Semiconductor Internal SRAM INTERNAL SRAM CHAPTER 5 ...
Page 107: ...107 246 ABOV Semiconductor Watch Dog Timer WATCH DOG TIMER WDT CHAPTER 6 ...
Page 113: ...113 246 ABOV Semiconductor 16 bit Timer 16 BIT TIMER CHAPTER 7 ...
Page 129: ...129 246 ABOV Semiconductor FRT FREE RUN TIMER FRT CHAPTER 8 ...
Page 134: ...134 246 134 246 ABOV Semiconductor AC30M1x64 1x32 FUNCTION DESCRIPTION 8 3 ...
Page 135: ...135 246 UART ABOV Semiconductor UNIVERSAL ASYNCHRONOUS CHAPTER 9 RECEIVER TRANSMITTER UART ...
Page 151: ...151 246 ABOV Semiconductor UART Figure 9 6 Transmit interrupt timing diagram ...
Page 152: ...152 246 152 246 ABOV Semiconductor AC30M1x64 1x32 SERIAL PERIPHERAL INTERFACE SPI CHAPTER 10 ...
Page 164: ...164 246 164 246 ABOV Semiconductor AC30M1x64 1x32 I2 C Interface CHAPTER 11 ...
Page 185: ...185 246 ABOV Semiconductor Motor PWM MOTOR PULSE WIDTH MODULATOR CHAPTER 12 MPWM ...
Page 215: ...215 246 ABOV Semiconductor Divider DIVIDER DIV64 CHAPTER 13 ...
Page 221: ...221 246 ABOV Semiconductor 12 BIT A D Converter 12BIT A D CONVERTER CHAPTER 14 ...
Page 235: ...235 246 ABOV Semiconductor CHARACTERISTIC SECTION 3 CHARACTERISTIC ...
Page 236: ...236 246 236 246 ABOV Semiconductor AC30M1x64 1x32 Electrical Characteristic CHAPTER 1 ...
Page 243: ...243 246 ABOV Semiconductor Package Package CHAPTER 2 ...