Page 90
Epson Research and Development
Vancouver Design Center
S1D13505
Hardware Functional Specification
X23A-A-001-14
Issue Date: 01/02/02
7.5.8 8-Bit Dual Color Passive LCD Panel Timing
Figure 7-38: 8-Bit Dual Color Passive LCD Panel Timing
VDP
= Vertical Display Period
= (REG[09h] bits [1:0], REG[08h] bits [7:0]) + 1
VNDP
= Vertical Non-Display Period
= (REG[0Ah] bits [5:0]) + 1
HDP
= Horizontal Display Period
= ((REG[04h] bits [6:0]) + 1)*8Ts
HNDP
= Horizontal Non-Display Period
= ((REG[05h] bits [4:0]) + 1)*8Ts
FPLINE
FPSHIFT
UD[3:0], LD[3:0]
FPFRAME
FPLINE
MOD
MOD
* Diagram drawn with 2 FPLINE vertical blank period
Example timing for a 640x480 panel
VDP
HDP
VNDP
HNDP
LINE 1/241
LINE 2/242
LINE 3/243
LINE 4/244
LINE 239/479 LINE 240/480
LINE 1/241
LINE 2/242
1-R 1
1-G1
1-B1
1-R2
1-G 2
1-B2
1-R 3
1-G3
1-B3
1-R4
1-G4
1-B4
1-R5
1-G5
1-B5
1-R6
1-G6
1-B6
1-R7
1-G7
1-R8
1-G8
1-B8
1-B639
1-R640
1-G640
1-B640
2 41-
B639
241-
R640
241-
G640
241-
B640
241-R 1
241-G1
241-B1
241-R 2
241-G2
24 1-B2
241-R3
241-G3
241-B 3
241-R 4
241-G4
241-B 4
241-R5
241-G 5
241-B5
241-R 6
241-G6
241-B6
241-R7
241-G7
241-B7
241-R8
241-G8
241-B8
1-B7
FPDAT7 (UD3)
FPDAT6 (UD2)
FPDAT5 (UD1)
FPDAT4 (UD0)
FPDAT3 (LD3)
FPDAT2 (UD2)
FPDAT1 (UD1)
FPDAT0 (UD0)