S1D12200 Epson Electronics America, Inc., S1D12200 Datasheet - Page 29
S1D12200
Manufacturer Part Number
S1D12200
Description
S1d12000 Series Lcd Driver Ic Technical Manual Technical Manual
Manufacturer
Epson Electronics America, Inc.
Datasheet
1.S1D12200.pdf
(260 pages)
- Current page: 29 of 260
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S1D12200 Series
Low Power Consumption Mode
S1D12200 Series is provided with standby mode and
sleep mode for saving power consumption during standby
period.
Switching between on and off of the standby mode is
done using the power save command.
In the standby mode, only static icon is displayed.
1. Liquid crystal display output
2. DD RAM, CG RAM and symbol register
3. Operation mode is retained the same as it was prior
4. Oscillating circuit
To enter the sleep mode, turning off the power circuit and
oscillation circuit using the commands, and then execute
power save command. This mode helps to save power
consumption by reducing current to almost resting cur-
rent level.
1. Liquid crystal display output
2. DD RAM, CG RAM and symbol register
3. Operation mode mode is retained the same at it was
4. Power circuit and oscillation circuit
2–20
Sleep Mode
Standby Mode
COM1 ~ COM24, COMS1, COMS2 : V
SEG1 ~ SEG60, SEGS1, 2, 4, 5
SEGSA, B, C, D, E, F, G, H, I, J, COMSA: Can be
turned on by static drives.
Use the static icon RAM for controlling the static
icon display done with SEGSA, B, C, D, E, COMSA.
Written information is saved as it is irrespective of on
or off of the stand-by mode.
to execution of the standby mode.
The internal circuit for the dynamic display output is
stopped.
The oscillation circuit for the static display must be
remained on.
COM1 ~ COM24, COMS1, COMS2 : V
SEG1 ~ SEG60, SEGS1, 2, 4, 5
SEGSA, B, C, D, E, F, G, H, I, J, COMSA: Clear all
the data of the static icon registers to “0”.
Written information is saved at it is irrespective of on
or off the sleep mode.
prior to execution of the sleep mode.
All internal circuits are stopped.
Turn off the built-in supply circuit and oscillation
circuit using the power save command and supply
control command.
: V
: V
DD
DD
DD
DD
level
level
level
level
EPSON
Reset Circuit
Upon activation of the RES input, this LSI will be
initialized.
1. Display on/off control
2. Power save
3. Supply control
4. System setting
5. Electronic volume control
6. Static icon
As explained in the Section “MPU interface”, the RES
terminal connects to the reset terminal of the MPU and
initialization is being effected together with the MPU.
However, when the bus, port, etc. of the MPU maintains
high-impedance for a certain duration of time after
resetting, make the resetting input to the S1D12200
Series after the inputs to the S1D12200 Series have
become definite.
As the resetting signal, like explained in the Section “DC
characteristics”, active level pulses of minimum 10us or
more should be used. Normal operation status can be
obtained after 1us from the edge of the RES signal.
By making the RES terminal active, respective registers
can be cleared and the aforesaid setting state can be
obtained.
If initialization is not effected by the RES terminal when
the supply voltage is applied, it may go into a state where
cancellation is unworkable.
In case the built-in liquid crystal power circuit will not be
used, it becomes necessary that the RES input be active
when the external liquid crystal power is being applied.
Initial State
C = 0
B = 0
D = 0
O = 0
PS = 0
VC = 0
VF = 0
P = 0
N2, N1 = 0 : 2 lines
S = 0
CG = 0
Address
Data
Address
Data
Address
Data
Address
Data
Address
Data
: Cursor off
: Blink off
: Display off
: Oscillation off
: Power save off
: Voltage regulation circuit off
: Voltage follower off
: Amplifying circuit off
: Left-hand shift
: “CGRAM” blank
: 28H
: (0, 0, 0, 0, 0)
: 20H
: (0, 0, 0, 0, 0)
: 21H
: (0, 0, 0, 0, 0)
: 22H
: (0, 0, 0, 0, 0)
: 23H
: (0, 0, 0, 0, 0)
Rev. 1.4
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