
ML62Q1000 Series User's Manual
Chapter 12
I2C Bus Unit
FEUL62Q1000
12-23
12.3.1.5 Control Register Setting Wait State
12.3.1.6 Data Transmission Mode
Control register setting wait state
completed (move to one of: data
transmission/reception mode, stop
condition, or restart condition)
Control register setting wait state start
Confirm transmit error flag and
acknowledgment data
Confirm I2UM0ER and I2UM0ACR bits
in the I2UM0STA register
Generate I
2
C bus unit 0 interrupt
(I2CU0INT)
When entering the control register setting wait state,
an interrupt is generated through hardware
Load received data into CPU
<Only when data is received> Read the I2UM0RD register
and load received data into the CPU
I2UM0R7 to I2UM0R0 bits: 8-bit receive data
Set communication mode
<Only when operation mode is changed>
Set I2UM0MOD register
Set control register
Set the I2UM0CON register
I2UM0ST bit: Starts communication (I2UM0ST=1)
I2UM0SP bit: Stop condition request (I2UM0SP=1)
I2UM0RS bit: Restart request (I2UM0RS=1)
Write transmitted data
<Only when data is transmitted> Set I2UM0TD register
I2UM0T7 to I2UM0T0 bits: 8-bit transmit data
Data transmit mode completed
(move to control register
setting wait state)
Data transmit mode start
Acknowledgment signal is received by
the I
2
C bus status register
Acknowledgment signal is received through hardware
I2UM0ACR bit: Acknowledgment data
Transmit value of I
2
C bus 0 transmit
data register (I2UM0TD)
Transmission data that has been written to the I2UM0TD
register is transmitted from the I2CU0_SDA pin in MSB first
I2UM0T7 to I2UM0T0 bits: 8-bit transmit data
Value transmitted from the I2CU0_SDA pin
is stored in the I2UM0RD register
I
2
C bus 0 control register (I2UM0CON) setting wait state
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...