ML610Q428-NNNTBZ03A7 Rohm Semiconductor, ML610Q428-NNNTBZ03A7 Datasheet - Page 217

• 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: -

14.4 Specifying port registers
14.4.1
Chapter 20, “Port 4” for detail about the port registers.
register) to “1”, for specifying the I2C as the secondary function of P41 and P40.
set P41DIR-P40DIR bit(bit1-0 of P4DIR register) to “0”, for specifying the P41 and P40 as Nch open-drain output. The
open-drain/open-collector outputs are required on the I2C bus line to avoid collision between H level and L level.
function.
When you want to make sure the I2C function is working, please check related port registers are specified. See
Set P41MD1-P40MD1 bits(bit1-bit0 of P4MOD1 register) to “0” and set P41MD0-P40MD0(bit1-bit0 of P4MOD0
Set P41C1-P40C1 bit(bit1-0 of P4CON1 register) to “1”, set P41C0-P40C0 bit(bit1-0 of P4CON0 register) to “0”, and
Data of P41D-P40D bits (bit1-0 of P4D register) do not affect to the I2C function, so don’t care the data for the
Reg. name
Reg. name
Reg. name
Reg. name
Reg. name
Reg. name
Bit name
Bit name
Bit name
Bit name
Bit name
Bit name
* : Bit not related to the I2C(using P41 and P40) function
** : Don’t care the data
Data
Data
Data
Data
Data
Data
Bit
Bit
Bit
Bit
Bit
Bit
Functioning P41(SCL) and P40(SDA) as the I2C
P47MD1
P47MD0
P47DIR
P47C1
P47C0
P47D
7
7
7
7
7
7
*
*
*
*
*
*
P46MD1
P46MD0
P46DIR
P46C1
P46C0
P46D
6
6
6
6
6
6
*
*
*
*
*
*
P45MD1
P45MD0
P45DIR
P45C1
P45C0
P45D
5
5
5
5
5
5
*
*
*
*
*
*
P4MOD1 register (Address: 0F225H)
P4MOD0 register (Address: 0F224H)
P4CON1 register (Address: 0F223H)
P4CON0 register (Address: 0F222H)
P4DIR register (Address: 0F221H)
P4D register (Address: 0F220H)
14 – 13
P44MD1
P44MD0
P44DIR
P44C1
P44C0
P44D
4
4
4
4
4
4
*
*
*
*
*
*
P43MD1
P43MD0
P43DIR
P43C1
P43C0
P43D
3
3
3
3
3
3
*
*
*
*
*
*
ML610Q428/ML610Q429 User’s Manual
P42MD1
P42MD0
P42DIR
P42C1
P42C0
P42D
2
2
2
2
2
2
*
*
*
*
*
*
Chapter 14 I
P41MD1
P41MD0
P41DIR
P41C1
P41C0
P41D
**
1
0
1
1
1
1
1
0
1
0
1
2
C Bus Interface
P40MD1
P40MD0
P40DIR
P40C1
P40C0
P40D
**
0
0
0
1
0
1
0
0
0
0
0