ML610Q412P-NNNTB03A7 Rohm Semiconductor, ML610Q412P-NNNTB03A7 Datasheet - Page 218

• Manufacturer Part Number: ML610Q412P-NNNTB03A7
• Description: MCU 8BIT 16K FLASH 120-TQFP
• Manufacturer: Rohm Semiconductor

Specifications of ML610Q412P-NNNTB03A7

• Core Processor: nX-U8/100
• Core Size: 8-Bit
• Speed: 625kHz
• Connectivity: I²C, SSP, UART/USART
• Peripherals: LCD, POR, PWM, WDT
• Number Of I /o: 14
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.1 V ~ 3.6 V
• Data Converters: A/D 2x12b, 2x24b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Figure 15-5 shows the operation timing and control method when an acknowledgment error occurs.
When the values of the transmitted bit and the SDA pin do not coincide, the I20ER bit of the I2C bus 0 status register
(I2C0STAT) is set to “1” and SDA pin remains the output until termination of the subsequent byte data communication.
I20ERR bit is initialized to “0” by writing I
Figure 15-6 shows the operation timing and control method when transmission fails.
Figure 15-5 Operation Suspend Timing at Occurrence of Acknowledgment Error
Figure 15-6 Operation Timing When Transmission Fails
I20ER
Register
setting
SDA
I2C0INT
I20ST
I2C0RD
Register
setting
SDA
I2C0INT
I20ST
I2C0RD
I20ACR
I2C0SA=”xxxxxxx0B”
I2C0CON=”01H”
2
C Bus 0 Control Register (I2C0COCON).
I2C0SA=”xxxxxxx0B”
I2C0CON=”01H”
S A
S A
6
6
A
5
A
Value of I2C0SA
5
A
4
Transmission failure
A
4
15 – 12
A
3
A
3
ML610Q411/ML610Q412/ML610Q415 User’s Manual
A
2
A
1
A
0
Acknowledgment error
W
R
A
A
I2C0CON=”00H”
Value of I2C0SA
I2C0CON=”02H”
Undefined data
P
Chapter 15 I
2
C Bus Interface