ML610Q408-NNNTBZ03A7 Rohm Semiconductor, ML610Q408-NNNTBZ03A7 Datasheet - Page 331

• Manufacturer Part Number: ML610Q408-NNNTBZ03A7
• Description: MCU 8BIT 16K FLASH 8CH 100-TQFP
• Manufacturer: Rohm Semiconductor
• Series: -r

Specifications of ML610Q408-NNNTBZ03A7

• Core Processor: nX-U8/100
• Core Size: 8-Bit
• Speed: 2MHz
• Connectivity: SSP, UART/USART
• Peripherals: LCD, Melody Driver, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.25 V ~ 3.6 V
• Data Converters: A/D 2x16b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 70°C
• Package / Case: 100-TFQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

22.3 Description of Operation
22.3.1 Operation of LCD Drivers and Bias Generation Circuit
Figure 22-6 shows the operation of the LCD drivers and the bias generation circuit.
① System reset causes the bias generation circuit and the LCD drivers to stop operation and V
② By using the bias circuit control register (BIASCON), select 1/2 bias or 1/3 bias and select the bias voltage
③ When the programmable display allocation function is used, set LCD allocation data in the display allocation
④ Set a frame frequency and a duty by using the display mode register 0 (DSPMOD0). When using the
⑤ Set display data in the display registers (DSPR00 to DSPR27).
⑥ On the display control register (DSPCON), set the LMD1 and LMD0 bits to the display mode. (Display
Internal BIAS ON Signal
to each of the common and segment pins.
multiplying clock.
registers (DS0C0 to DS39C4).
programmable display allocation function, set the DSPMOD1 register's DASN bit to"1". When not using the
programmable display allocation function, set the DSPMOD1 register's DASN bit to"0".
waveform is output to each segment pin.)
LCD bias voltage
Common output
Segment output
SEG0∼SEG39
COM0∼COM4
LMD1, LMD0
RESET_N
V
Figure 22-6 Operation of LCD Drivers and Bias Generation Circuit
Reset
L1
∼V
L3
V
V
SS
SS
22-19
ML610Q407/ML610Q408/ML610Q409 User's Manual
Generation of LCD bias voltage
Common Output Waveforms
Segment Output Waveform
Chapter 22 LCD Drivers
SS
level to be output