ML610Q412P-NNNTB03A7 Rohm Semiconductor, ML610Q412P-NNNTB03A7 Datasheet - Page 336

• 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: -

26.3 Description of Operation
26.3.1
Figure 26-4 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 Vss level to be output to
2 By using the bias circuit control register (BIASCON), select 1/3 bias or 1/4 bias and lock of bias voltage multiplying,
3 Set a frame frequency and a duty by using the display mode register 0 (DSPMOD0).
5 4 Set display data in the display registers (ML610Q411/Q415: DSPR00 to DSPR23, ML610Q412: DSPR00 to
For the bias activation time (T
each of the common and segment pins.
and set the bias generation circuit to on (BSON = “1”).
DSPR2B).After elapse of the bias activation time (T
and LMD0 bits of the display control register (DSPCON). (Display waveform is output to each segment pin.)
Operation of LCD Drivers and Bias Generation Circuit
(ML610Q411/Q415)
BIASCON.BSON
LCD bias voltage
SEG0 to SEG35
SEG0 to SEG43
COM0 to COM4
Common output
Segment output
Figure 26-6 Operation of LCD Drivers and Bias Generation Circuit
(ML610Q412)
LMD1, LMD0
RESET_N
V
L1
Reset
to V
L3
BIAS
), see the “Electrical Characteristics” Section in Appendix C.
1
V
V
SS
SS
2
BIAS activation time (T
BIAS
26 – 13
) or longer, set the mode to display mode by using the LMD1
ML610Q411/ML610Q412/ML610Q415 User’s Manual
34
Generation of LCD bias voltage
BIAS
6
)
Common output waveform
Segment output waveform
Chapter 26 LCD Drivers