ML610Q412P-NNNTB03A7 Rohm Semiconductor, ML610Q412P-NNNTB03A7 Datasheet - Page 178

• 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: -

13.3 Description of Operation
13.3.1
When “1” is written to the S0MD1 bit and “0” is written to the S0MD0 bit of the serial mode register (SIO0MOD0),
this LSI is set to a transmit mode.
When transmit data is written to the serial port transmit /receive buffer (SIO0BUFL and H) and the S0EN bit of the
serial port control register (SIO0CON) is set to “1”, transmission starts. When transmission of 8/16-bit data terminates,
a synchronous serial port interrupt (SIO0INT) occurs and the S0EN bit is set to “0”.
Transmit data is output from the tertiary function pins (P42/SOUT0 or P46/SOUT0) of GPIO.
When an internal clock is selected in the serial port mode register (SIO0MOD1), the LSI is set to a master mode and
when an external clock (P41/SCK0 or P45/SCK0) is selected, the LSI is set to a slave mode.
The serial port mode register (SIO0MOD0) enables selection of MSB first/LSB first.
The transmit data output pin (P42/SOUT0 or P46/SOUT0) and transfer clock input/output pin (P41/SCK0 or
P45/SCK0) must be set to the tertiary functions.
Figures 13-2 and 13-3 show the transmit operation waveforms of the synchronous serial ports for clock type 0 and
clock type 1, respectively (8-bit length, LSB first, clock types 0 and 1).
Transmit Operation
SIO0TRL
SIO0TRL
SIO0INT
SIO0INT
SOUT0
SOUT0
S0EN
SCK0
Figure 13-2 Transmit Operation Waveforms of Synchronous Serial Port
Figure 13-3 Transmit Operation Waveforms of Synchronous Serial Port
S0EN
SCK0
for Clock Type 0 (8-bit Length, LSB first)
for Clock Type 1 (8-bit Length, LSB first)
0
0
Transmit data
Transmit data
1
1
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ML610Q411/ML610Q412/ML610Q415 User’s Manual
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Chapter 13 Synchronous Serial Port
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