
ML62Q1000 Series User's Manual
Chapter 12
I2C Bus Unit
FEUL62Q1000
12-30
12.3.3.6 Data Reception Mode
12.3.3.7 Stop Condition
Data receive mode completed
(move to communication wait
state)
Data receive mode start
Transmit acknowledgment value of
I
2
C bus 0 control register (I2US0CON)
Acknowledgment signal is transmitted through hardware
I2US0ACT bit: Acknowledgment value
Transmitted acknowledgment value is stored in the
I2US0ACR bit of the I2US0STA register
Store each bit of received data
in shift register (8-bit) one by one
Value (received data) input to I2CU0_SDA pin
is stored in synchronization with rising edge of
transfer clock input to I2CU0_SCL pin in MSB first
Shift to communication wait state after detection of falling
edge of transfer clock which was input to I2CU0_SCL pin
transmitting acknowledgment data
Store data in I
2
C bus 0
receive register (I2US0RD)
Received data is stored from the shift register after
acknowledgment signal is transmitted
I2US0R7 to I2US0R0 bits: 8-bit receive data
Stop condition completed
(move to start condition or
I
2
C operation stop (I2US0EN=1))
Stop condition start
Switch I
2
C bus 0 status register
(I2US0STA) to busy state
Value of the following bit becomes "0" when stop condition
waveforms are input to I2CU0_SDA and I2CU0_SCL pins:
I2US0BB bit: I
2
C bus free state (I2US0BB=0)
<Only when I2US0PIE=1>
Stop condition interrupt is generated
I
2
C bus unit interrupt
(I2CU0INT) is generated
Содержание ML62Q1000 Series
Страница 17: ...Chapter 1 Overview...
Страница 112: ...Chapter 2 CPU and Memory Space...
Страница 154: ...Chapter 3 Reset Function...
Страница 166: ...Chapter 4 Power Management...
Страница 196: ...Chapter 5 Interrupts...
Страница 248: ...Chapter 6 Clock generation Circuit...
Страница 274: ...Chapter 7 Low Speed Time Base Counter...
Страница 291: ...Chapter 8 16 Bit Timer...
Страница 320: ...Chapter 9 Functional Timer FTM...
Страница 382: ...Chapter 10 Watchdog Timer...
Страница 402: ...Chapter 11 Serial Communication Unit...
Страница 456: ...Chapter 12 I2 C Bus Unit...
Страница 491: ...Chapter 13 I2 C Master...
Страница 512: ...Chapter 14 DMA Controller...
Страница 531: ...Chapter 15 Buzzer...
Страница 550: ...Chapter 16 Simplified RTC...
Страница 559: ...Chapter 17 GPIO...
Страница 594: ...Chapter 18 External Interrupt Function...
Страница 612: ...Chapter 19 CRC Generator...
Страница 632: ...Chapter 20 Analog Comparator...
Страница 644: ...Chapter 21 D A Converter...
Страница 655: ...Chapter 22 Voltage Level Supervisor...
Страница 676: ...Chapter 23 Successive Approximation Type A D Converter...
Страница 709: ...Chapter 24 Regulator...
Страница 714: ...Chapter 25 Flash Memory...
Страница 743: ...Chapter 26 Code Option...
Страница 750: ...Chapter 27 LCD Driver...
Страница 788: ...Chapter 28 On Chip Debug Function...
Страница 795: ...Chapter 29 Safety Function...
Страница 813: ...Appendix A...
Страница 881: ...Revision History...