SL20T0081 System Logic Semiconductor, SL20T0081 Datasheet - Page 29

• Manufacturer Part Number: SL20T0081
• Description: SLS System Logic Semiconductor
• Manufacturer: System Logic Semiconductor

SLS System Logic Semiconductor
appears at D4. After D4 becomes “L”, any instruction can be accepted. RESET must be connected to the reset pin of
the MPU, and initialize the MPU and this LSI at the same time. The initialization by RESET is essential before used.
Setting RESET to “L” or Reset instruction con internal function.
When RESET becomes “L”, following procedure is occurred.
When RESET instruction is issued, following procedure is occurred.
While RESET is “L” or Reset instruction is executed,no instruction except read status could be accepted. Reset status
RESET CIRCUIT
Display ON/OFF: OFF
All segments ON/OFF: OFF(normal)
ADC select: OFF(normal)
Reverse display ON/OFF: OFF(normal)
Power control register (VC, VR, VF) = (0,0,0)
Serial interface internal register data clear
LCD bias ratio: 1/9 (1/65 duty), 1/8 (1/55 duty), 1/6 (1/33 duty)
On-chip oscillator OFF
Power save release
Read-modify-write: OFF
SHL select: OFF(normal)
Static indicator mode: OFF
Static indicator register: (S1, S0) = (0, 0)
Display start line: 0 (first)
Column address: 0
Page address: 0
Regulator resistor select register: (R2, R1, R0) = (1, 0, 0)
Reference voltage set: OFF
Reference voltage control register: (VR5, VR4, VR3, VR2, VR1, VR0) = (1, 0, 0, 0, 0, 0)
Test mode release
Read-modify-write: OFF
Static indicator mode: OFF
Static indicator register:(S1, S0) = (0, 0)
SHL select: 0
Display start line: 0 (first)
Column address: 0
Page address: 0
Regulator resistor select register: (R2, R1, R0) = (1, 0, 0)
Reference voltage control register: (VR5, VR4, VR3, VR2, VR1, VR0) = (1, 0, 0, 0, 0, 0)
Test mode release
SL20T0081