S1D13704 Epson Electronics America, Inc., S1D13704 Datasheet - Page 104
S1D13704
Manufacturer Part Number
S1D13704
Description
LCD Controller
Manufacturer
Epson Electronics America, Inc.
Datasheet
1.S1D13704.pdf
(492 pages)
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2 Initialization
S1D13704
X26A-G-002-03
Register
[0A]
[0B]
[0C]
[0D]
[01]
[02]
[03]
[04]
[05]
[06]
[07]
[08]
[09]
1010 0000 (B0)
1110 1111 (EF)
0001 1110 (1E)
0010 0000 (20)
0000 0011 (03)
0010 0111 (27)
0000 0000 (00)
0000 0000 (00)
0000 0000 (00)
0010 0110 (26)
0000 0000 (00)
0000 0000 (00)
0000 0000 (00)
Value (hex)
This section describes the register settings and steps needed to initialize the S1D13704. The
first step toward initializing the S1D13704 is to set the control registers. The S1D13704
then generates the proper control signals for the display. After setting the control registers,
the Look-up Table must be programmed with meaningful values. This section does not
cover setting Look-Up Table values. See Section 4 on page 14 of this manual for Look-up
Table programming details.
The following initialization, presented in table form, provides the sequences and values to
set the registers. The notes column comments the reason for the particular value being
written.
This example writes to all the control registers. In practice, it may be possible to write to
only a subset of the registers. When the S1D13704 is first powered up all registers, unless
noted otherwise in the specification, are set to zero. This example programs these registers
to zero to establish a known state.
The initialization enables the S1D13704 to control a panel with the following specifica-
tions:
• 320x240 color dual passive panel at 75Hz.
• Color Format 2, 8-bit data interface.
• 4 bit-per-pixel (bpp) - 16 colors.
• 25 MHz input clock (CLKI).
Select an passive, Single, Color panel with a data width of 4-bits
Select 4-bpp color depth and high performance.
Select normal power operation
Horizontal display size = (Reg[04]+1)*8 = (39+1) * 8 = 320 pixels
Vertical display size = Reg[06][05] + 1
= 0000 0000 1110 1111 + 1 = 239 +1 = 240 lines
FPLINE start position (not used by STN)
Horizontal non-display period = (Reg[08] + 4) * 8
FPFRAME start position (not used by STN)
Vertical non-display period = REG[0A] = 38 lines
MOD rate - not required for this panel
Screen 1 Start Address - set to 0 for initialization
= (30 + 4) * 8 = 272 pixels
Table 2-1: S1D13704 Initialization Sequence
Notes
Epson Research and Development
Programming Notes and Examples
Frame Rate Calculation
Frame Rate Calculation
Split Screen on page 30
Vancouver Design Center
See Also
Issue Date: 01/02/12
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