26 LCD CONTROLLER (LCDC)
S1C33L26 TECHNICAL MANUAL
Seiko Epson Corporation
26-21
1-bpp mode (TFT panel, LUT bypassed)
D0
LCDC signals
0
1-bpp pixel data
TFT panel
R signals
FPD
AT23
FPD
AT22
FPD
AT21
FPD
AT20
FPD
AT19
FPD
AT18
FPD
AT17
FPD
AT16
FPD
AT15
FPD
AT14
FPD
AT13
FPD
AT12
FPD
AT11
FPD
AT10
FPD
AT
9
FPD
AT
8
FPD
AT
7
FPD
AT
6
FPD
AT
5
FPD
AT
4
FPD
AT
3
FPD
AT
2
FPD
AT
1
FPD
AT
0
TFT panel
G signals
TFT panel
B signals
5.6.1 FPDAT Signals in LUT Bypass Mode (TFT panel, 1-bpp mode)
Figure 26.
5.6.1 Relationship between 1-bpp Pixel Data and FPDAT Signals
Table 26.
Pixel data
FPDAT[15:0] signals
FPDAT[23:16] signals
1
High (1)
Low (0)
0
Low (0)
Low (0)
2-bpp mode (TFT panel, LUT bypassed)
To ensure a uniform brightness, D1 and D0 are connected to the TFT panel RGB signals repeatedly.
D0
LCDC signals
0
2-bpp pixel data
TFT panel
R signals
FPD
AT23
FPD
AT22
FPD
AT21
FPD
AT20
FPD
AT19
FPD
AT18
FPD
AT17
FPD
AT16
FPD
AT15
FPD
AT14
FPD
AT13
FPD
AT12
FPD
AT11
FPD
AT10
FPD
AT
9
FPD
AT
8
FPD
AT
7
FPD
AT
6
FPD
AT
5
FPD
AT
4
FPD
AT
3
FPD
AT
2
FPD
AT
1
FPD
AT
0
TFT panel
G signals
TFT panel
B signals
D1
5.6.2 FPDAT Signals in LUT Bypass Mode (TFT panel, 2-bpp mode)
Figure 26.
5.6.2 Relationship between 2-bpp Pixel Data and FPDAT Signals
Table 26.
Pixel data
FPDAT0/2/4/6/8/10/11/13/15
signals
FPDAT1/3/5/7/9/12/14
signals
FPDAT[23:16] signals
0x3
High (1)
High (1)
Low (0)
0x2
High (1)
Low (0)
Low (0)
0x1
Low (0)
High (1)
Low (0)
0x0
Low (0)
Low (0)
Low (0)
4-bpp mode (TFT panel, LUT bypassed)
To ensure a uniform brightness, D3 to D0 are connected to the TFT panel RGB signals repeatedly.
D0
LCDC signals
0
4-bpp pixel data
TFT panel
R signals
FPD
AT23
FPD
AT22
FPD
AT21
FPD
AT20
FPD
AT19
FPD
AT18
FPD
AT17
FPD
AT16
FPD
AT15
FPD
AT14
FPD
AT13
FPD
AT12
FPD
AT11
FPD
AT10
FPD
AT
9
FPD
AT
8
FPD
AT
7
FPD
AT
6
FPD
AT
5
FPD
AT
4
FPD
AT
3
FPD
AT
2
FPD
AT
1
FPD
AT
0
TFT panel
G signals
TFT panel
B signals
D1
D2
D3
5.6.3 FPDAT Signals in LUT Bypass Mode (TFT panel, 4-bpp mode)
Figure 26.