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3.3
Command Description
3.3.1
Operation Control Commands
SYSTEM SET
This command and the parameters that follow specify initial reset of the device, set the window size, and the
method of connecting with the LCD unit. This command determines the fundamental operation of the
S1D13700. Therefore, if this command is incorrectly set, the functions of other commands may not work
normally.
<Indirect mode>
MSB
D7
C
0
P1
0
WF
P2
P3
0
P4
P5
P6
P7
P8
C
The command alone has the following initial reset functions:
• Resets the internal timing circuit.
• Turns display off.
• Deactivates sleep mode (internal operation stopped state) (thus starting the oscillator).
To deactivate sleep mode, make sure the command and one parameter (P1) are input.
In direct interface mode, clearing the SleepIn bit has the same effect.
S1D13700 Technical Manual
D6
D5
D4
D3
1
0
0
0
0
IV
1
W /S
0
0
0
0
0
0
0
C/R
TC/R
L/F
APL
APH
3: COMMANDS AND COMMAND REGISTERS
LSB
D2
D1
D0
0
0
0
M2
M1
M0
FX
FY
EPSON
<Direct mode>
Address
Register name
–
0x8000
r_P1_SystemSet
bit5 : IV
bit3 : WS
bit2 : M2
bit1 : M1
bit0 : M0
0x8001
r_P2_SystemSet
bit7 : WF
bit2-0 : FX
0x8002
r_P3_SystemSet
bit3-0 : FX
0x8003
r_P4_SystemSet
bit7-0 : CR
0x8004
r_P5_SystemSet
bit7-0 : TCR
0x8005
r_P6_SystemSet
bit7-0 : LF
0x8006
r_P7_SystemSet
bit7-0 : APL
0x8007
r_P8_SystemSet
bit7-0 : APH
–
17
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