Page 88
Epson Research and Development
Vancouver Design Center
S1D13505
Hardware Functional Specification
X23A-A-001-14
Issue Date: 01/02/02
7.5.7 8-Bit Dual Monochrome Passive LCD Panel Timing
Figure 7-36: 8-Bit Dual Monochrome 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
UD2
UD1
UD0
LD3
LD2
LD1
LD0
UD3
MOD
* Diagram drawn with 2 FPLINE vertical blank period
Example timing for a 640x480 panel
VDP
1-2
1-6
1-638
1-3
1-7
1-639
1-4
1-8
1-640
241-1
241-5
241-637
241-638
241-639
241-640
1-1
1-5
1-637
HDP
241-2
241-6
241-3
241-7
241-4
241-8
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