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ABOV Semiconductor
I
2
C
OVERVIEW
11.1
I
2
C(Inter-Integrated Circuit) bus serves as an interface between the microcontroller and the serial I
2
C bus. It provides
two wires, serial bus interface to a large number of popular devices and allows parallel-bus systems to communicate
bidirectional with the I
2
C-bus.
Master and slave operation
Programmable communication speed
Multi-master bus configuration
7-bit addressing mode
Standard data rate of 100/400 KBps
STOP signal generation and detection
START signal generation
ACK bit generation and detection
Figure 11.1.I
2
C Block diagram
SDA
F/F
8-bit Shift Register
(SHFTR)
Slave Addr. Register1
(I2CSAR1)
Noise
Canceller
(debounce)
Data Out Register
(I2CDR)
(I2CSCLHR)
(I2CSCLLR)
(I2CDAHR)
SDA
Out Controller
SCL
Out Controller
SCL
Noise
Canceller
(debounce)
I
n
t
e
r
n
a
l
B
u
s
L
i
SDAIN
SDAOUT
SCLIN
SCLOUT
1
0
1
0
Debounce
enable
Debounce
enable
Slave Addr. Register
(I2CSAR)
Содержание AC30M1x32
Страница 3: ...3 246 ABOV Semiconductor INTRODUCTION SECTION 1 INTRODUCTION ...
Страница 4: ...4 246 4 246 AC30M1x64 1x32 ABOV Semiconductor OVERVIEW CHAPTER 1 ...
Страница 18: ...18 246 18 246 ABOV Semiconductor AC30M1x64 1x32 CPU CHAPTER 2 ...
Страница 22: ...22 246 22 246 ABOV Semiconductor AC30M1x64 1x32 Boot Mode CHAPTER 3 ...
Страница 26: ...26 246 26 246 ABOV Semiconductor AC30M1x64 1x32 SECTION 2 PERIPHERALS ...
Страница 27: ...27 246 ABOV Semiconductor System Control Unit SCU SYSTEM CONTROL UNIT SCU CHAPTER 1 ...
Страница 69: ...69 246 ABOV Semiconductor Port Control Unit PCU PORT CONTROL UNIT PCU CHAPTER 2 ...
Страница 85: ...85 246 ABOV Semiconductor General Purpose I O GPIO GENERAL PURPOSE I O GPIO CHAPTER 3 ...
Страница 92: ...92 246 92 246 AC30M1x64 1x32 ABOV Semiconductor FLASH MEMORY CONTROLLER CHAPTER 4 ...
Страница 105: ...105 246 ABOV Semiconductor Internal SRAM INTERNAL SRAM CHAPTER 5 ...
Страница 107: ...107 246 ABOV Semiconductor Watch Dog Timer WATCH DOG TIMER WDT CHAPTER 6 ...
Страница 113: ...113 246 ABOV Semiconductor 16 bit Timer 16 BIT TIMER CHAPTER 7 ...
Страница 128: ...128 246 128 246 ABOV Semiconductor AC30M1x64 1x32 Figure 7 9 ADC trigger function timing diagram ...
Страница 129: ...129 246 ABOV Semiconductor FRT FREE RUN TIMER FRT CHAPTER 8 ...
Страница 134: ...134 246 134 246 ABOV Semiconductor AC30M1x64 1x32 FUNCTION DESCRIPTION 8 3 ...
Страница 135: ...135 246 UART ABOV Semiconductor UNIVERSAL ASYNCHRONOUS CHAPTER 9 RECEIVER TRANSMITTER UART ...
Страница 151: ...151 246 ABOV Semiconductor UART Figure 9 6 Transmit interrupt timing diagram ...
Страница 152: ...152 246 152 246 ABOV Semiconductor AC30M1x64 1x32 SERIAL PERIPHERAL INTERFACE SPI CHAPTER 10 ...
Страница 164: ...164 246 164 246 ABOV Semiconductor AC30M1x64 1x32 I2 C Interface CHAPTER 11 ...
Страница 185: ...185 246 ABOV Semiconductor Motor PWM MOTOR PULSE WIDTH MODULATOR CHAPTER 12 MPWM ...
Страница 191: ...191 246 ABOV Semiconductor Motor PWM 0 1 WH CONTROL WH OUTPUT OLR WHL POLWH Figure 12 2 Polarity Control Block ...
Страница 215: ...215 246 ABOV Semiconductor Divider DIVIDER DIV64 CHAPTER 13 ...
Страница 221: ...221 246 ABOV Semiconductor 12 BIT A D Converter 12BIT A D CONVERTER CHAPTER 14 ...
Страница 235: ...235 246 ABOV Semiconductor CHARACTERISTIC SECTION 3 CHARACTERISTIC ...
Страница 236: ...236 246 236 246 ABOV Semiconductor AC30M1x64 1x32 Electrical Characteristic CHAPTER 1 ...
Страница 243: ...243 246 ABOV Semiconductor Package Package CHAPTER 2 ...
Страница 244: ...244 246 244 246 ABOV Semiconductor AC30M1x64 1x32 LQFP 48 Package dimension 2 1 Figure 2 1 Package dimension LQFP 48 ...
Страница 245: ...245 246 ABOV Semiconductor Package LQFP 32 Package dimension 2 2 Figure 2 2 Package dimension LQFP 32 ...
Страница 246: ...246 246 246 246 ABOV Semiconductor AC30M1x64 1x32 QFN 32 Package dimension 2 3 Figure 2 3 Package dimension QFN 32 ...