
ML62Q1000 Series User's Manual
Chapter 13 I2C Master
FEUL62Q1000
13-18
Figure 13-5 shows the operation timing and control method when an acknowledgment error occurs.
Figure 13-5 Operation suspend timing at occurrence of acknowledgment error
When the values of the transmitted bit and the I2CMn_SDA pin do not coincide, the I2MnER bit of the I
2
C master 0
status register (I2MnSTAT) is set to "1" and the I2CMn_SDA pin output is disabled until termination of the subsequent
byte data communication.
Figure 13-6 shows the operation timing and control method when transmission fails.
Figure 13-6 Operation timing when transmission fails
I2MnSA="xxxxxxx0B"
I2MnCON="01H"
S
A
6
A
5
A
4
A
3
A
2
A
1
A
0
R
W
A
P
I2MnCON="02H"
Values of I2MnSA
Values of I2MnSA
Register
setting
I2CMn_SDA pin
I2MnINT
I2MnST bit
I2MnRD register
I2MnACR bit
Acknowledge error
I2MnSA="xxxxxxx0B"
I2MnCON="01H"
S
A
6
A
5
A
4
A
3
A
I2MnCON="00H"
Undefined data
Register
setting
I2CMn_SDA pin
I2MnINT
I2MnST bit
I2MnRD register
I2MnER bit
Transmission failure
Summary of Contents for ML62Q1000 Series
Page 17: ...Chapter 1 Overview...
Page 112: ...Chapter 2 CPU and Memory Space...
Page 154: ...Chapter 3 Reset Function...
Page 166: ...Chapter 4 Power Management...
Page 196: ...Chapter 5 Interrupts...
Page 248: ...Chapter 6 Clock generation Circuit...
Page 274: ...Chapter 7 Low Speed Time Base Counter...
Page 291: ...Chapter 8 16 Bit Timer...
Page 320: ...Chapter 9 Functional Timer FTM...
Page 382: ...Chapter 10 Watchdog Timer...
Page 402: ...Chapter 11 Serial Communication Unit...
Page 456: ...Chapter 12 I2 C Bus Unit...
Page 491: ...Chapter 13 I2 C Master...
Page 512: ...Chapter 14 DMA Controller...
Page 531: ...Chapter 15 Buzzer...
Page 550: ...Chapter 16 Simplified RTC...
Page 559: ...Chapter 17 GPIO...
Page 594: ...Chapter 18 External Interrupt Function...
Page 612: ...Chapter 19 CRC Generator...
Page 632: ...Chapter 20 Analog Comparator...
Page 644: ...Chapter 21 D A Converter...
Page 655: ...Chapter 22 Voltage Level Supervisor...
Page 676: ...Chapter 23 Successive Approximation Type A D Converter...
Page 709: ...Chapter 24 Regulator...
Page 714: ...Chapter 25 Flash Memory...
Page 743: ...Chapter 26 Code Option...
Page 750: ...Chapter 27 LCD Driver...
Page 788: ...Chapter 28 On Chip Debug Function...
Page 795: ...Chapter 29 Safety Function...
Page 813: ...Appendix A...
Page 881: ...Revision History...