
ML62Q1000 Series User's Manual
Chapter 12
I2C Bus Unit
FEUL62Q1000
12-26
Figure 12-5 shows the operation timing and control method when an acknowledgment error occurs.
Figure 12-5 Operation suspend timing at occurrence of acknowledgment error in the master mode
When the values of the transmitted bit and the I2CU0_SDA pin do not coincide, the I2UM0ER bit of the I
2
C bus 0 status
register (I2UM0STA) is set to "1" and the I2CU0_SDA pin output is disabled until termination of the subsequent byte
data communication.
Figure 12-6 shows the operation timing and control method when transmission fails.
Figure 12-6 Operation timing when transmission fails in the master mode
I2UM0SA="xxxxxxx0B"
I2UM0CON="01H"
S
A
6
A
5
A
4
A
3
A
2
A
1
A
0
R
W
A
P
I2UM0CON="02H"
Values of I2UM0SA
Values of I2UM0SA
Register
setting
I2CU0_SDA pin
I2CU0INT
I2UM0ST bit
I2UM0RD register
I2UM0ACR bit
Acknowledge error
I2UM0SA="xxxxxxx0B"
I2UM0CON="01H"
S
A
6
A
5
A
4
A
3
A
I2UM0CON="00H"
Undefined data
Register
setting
I2CU0_SDA pin
I2CU0INT
I2UM0ST bit
I2UM0RD register
I2UM0ER bit
Transmission failure
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...