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6.8 Reset Circuit
____
When the
RES input reaches LOW, this IC enters the state of initial settings. The state of initial settings is
as follows:
1
Display: OFF
2
Display: normal rotation
3
Full display lighting: OFF
4
Common output state: normal drive, scanning direction in normal rotation
5
Display start line: set on the 1st line
6
Page address: set to page 0.
7
Column address: set to address 0.
8
Display data input direction: column direction
9
Column address direction: normal rotation
10
n line alternating inverted drive: Off (inverted drive for each frame)
11
n line inverted drive register: (D5, D4, D3, D2, D1, D0) = (0, 0, 0, 0, 0, 0)
12
Display mode: 4-gray scale display
13
Gray scale pattern register: (D7, D6, D5, D4, D3, D2, D1, D0) = (0, 1, 0, 1, 0, 0, 1, 0)
14
FRM pallet: Pallet 0
15
Display line number set register: (D5, D4, D3, D2, D1, D0) = (1, 0, 1, 1, 0, 1) (184 lines)
start point (block) register: (D5, D4, D3, D2, D1, D0) = (0, 0, 0, 0, 0, 0) (COM0 ∼ COM3)
*: COM output state: Normal drive, Normal scan direction.
16
Read-modify-write: OFF
17
Built-in oscillation circuit: stop
18
Clock frequency register: (D3, D2, D1, D0) = (0, 1, 0, 0)
19
TEST1 register: (D7, D6, D5, D4, D3, D2, D1, D0) = (0, 0, 0, 0, 0, 0, 0, 0)
20
Discharge: ON (at the
21
Power-saving: reset (OFF)
23
Data in the register in the serial interface: clear
24
Temperature sensor: OFF
25
MLS drive select register: (D4, D3) = (0, 1) (N-line frame inversion overlap OFF,
When the power is turned on, this circuit requires initialization using the
by the pin, each input pin should be controlled successfully.
If the impedance of the control signal from the MPU is high, an over current may flow into the IC. After
power is turned on, remedies for high impedance of input pin must be prescribed.
This IC discharges V
OUT1
MV
, and MV
to V
1
2
SSH
impedance during discharge. When using the external power supply for liquid crystal drive, do not supply
external power but set high impedance during the pin
supply and V
and apply the specified voltage after canceling reset.
SSH
S1D15722D01B000 Technical Manual (Rev.1.1)
____
RES = LOW level only)
to V
, and V
, V
SSL
____
OUT2
at the
RES pin = LOW level.
6. FUNCTIONAL DESCRIPTION
Non-dispersive drive)
, V
and liquid crystal drive voltages V
20
OUT3
Prevent the V
____
RES = LOW to prevent shorting in the external power
EPSON
____
RES pin. After being initialized
, V
3
and V
from being high
SSL
SSH
, V
, V
,
2
1
C
27
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