ML610Q111/ML610Q112 User’s Manual
Chapter 14 I
2
C bus Interface Slave
FEUL610Q111
14-13
When the values of the transmitted bit and the SDA pin do not coincide, the I21ER bit of the I2C bus 1 status register
(I2C0STAT) is set to “1” and SDA pin remains the output until termination of the subsequent byte data communication.
I21ER bit is initialized to “0” by writing I
2
C Bus 1 Control Register (I2C1CON).
Figure 14-5 shows the operation timing and control method when transmission fails.
Figure 14-5 Operation Timing When Transmission Fails
14.3.3 Operation Waveforms
Figure 14-6 shows the operation waveforms of the SDA and SCL signals and the I21BB flag.
Figure 14-6 Operation Waveforms of SDA and SCL Signals and I21BB Flag
I2C1TD=”xxH”
I2C1CON=”20H”
D
6
D
5
D
4
D
3
I2C1CON=”00H”
Undefined data
Register
setting
SDA
I2CSINT
I2C1RD
I21ER
Transmission failure
A
SDA
Start condition
Repeated start condition
Stop condition
SCL
t
HD:STA
t
LOW
t
HIGH
tHD:DAT
t
SU:STA
t
SU:STO
t
SU:DAT
I21BB
t
CYC
t
BUF
Summary of Contents for ML610Q111
Page 1: ...ML610Q111 ML610Q112 User s Manual Issue Date Nov 16 2016 FEUL610Q111 05 ...
Page 14: ...Chapter 1 Overview ...
Page 26: ...Chapter 2 CPU and Memory Space ...
Page 34: ...Chapter 3 Reset Function ...
Page 38: ...Chapter 4 MCU Control Function ...
Page 53: ...Chapter 5 Interrupts INTs ...
Page 81: ...Chapter 6 Clock Generation Circuit ...
Page 95: ...Chapter 7 Time Base Counter ...
Page 103: ...Chapter 8 Timers ...
Page 145: ...Chapter 9 Watchdog Timer ...
Page 153: ...Chapter 10 PWM ...
Page 199: ...Chapter 11 Synchronous Serial Port ...
Page 212: ...Chapter 12 UART ...
Page 240: ...Chapter 13 I2 C Bus Interface Master ...
Page 254: ...Chapter 14 I2 C Bus Interface Slave ...
Page 269: ...Chapter 15 Port A ...
Page 279: ...Chapter 16 Port B ...
Page 291: ...Chapter 17 Port C ...
Page 303: ...Chapter 18 Port D ...
Page 312: ...Chapter 19 Port AB Interrupts ...
Page 317: ...Chapter 20 Successive Approximation Type A D Converter ...
Page 335: ...Chapter 21 Voltage Level Supervisor ...
Page 342: ...Chapter 22 Analog Comparator ...
Page 353: ...Chapter 23 Data Flash Memory ...
Page 373: ...Chapter 24 On chip Debug ...
Page 375: ...Appendixes ...
Page 393: ...Appendix E ...
Page 398: ...Revision History ...