ML610Q428-NNNTBZ03A7 Rohm Semiconductor, ML610Q428-NNNTBZ03A7 Datasheet - Page 215

• Manufacturer Part Number: ML610Q428-NNNTBZ03A7
• Description: MCU 8BIT 48K FLASH 128-TQFP
• Manufacturer: Rohm Semiconductor

Specifications of ML610Q428-NNNTBZ03A7

• Core Processor: nX-U8/100
• Core Size: 8-Bit
• Speed: 4.2MHz
• Connectivity: I²C, SSP, UART/USART
• Peripherals: LCD, Melody Driver, POR, PWM, WDT
• Number Of I /o: 14
• Program Memory Size: 48KB (24K x 16)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 1.1 V ~ 3.6 V
• Data Converters: A/D 2x12b, 2x24b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 70°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Figure 14-5 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 (transmit failure due to arbitration when a
multi-masters is used), the I20ER bit of the I2C bus 0 status register (I2C0STAT) is set to “1” and SDA pin output is
prohibited until termination of the subsequent byte data communication.
Figure 14-6 shows the operation timing and control method when transmission fails.
Figure 14-5 Operation Suspend Timing at Occurrence of Acknowledgment Error
Figure 14-6 Operation Timing When Transmission Fails
I20ER
Register
setting
SDA
I2C0INT
I20ST
I2C0RD
Register
setting
SDA
I2C0INT
I20ST
I2C0RD
I20ACR
I2C0SA=”xxxxxxx0B”
I2C0CON=”01H”
I2C0SA=”xxxxxxx0B”
I2C0CON=”01H”
S A
S A
6
6
A
5
A
Value of I2C0SA
5
A
4
14 – 11
Transmission failure
A
4
A
3
A
3
A
2
A
1
A
0
Acknowledgment error
W
R
A
A
ML610Q428/ML610Q429 User’s Manual
I2C0CON=”00H”
Value of I2C0SA
I2C0CON=”02H”
Undefined data
P
Chapter 14 I
2
C Bus Interface