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S1D13705 Hardware Functional Specification
X27A-A-001-10 Issue Date: 02/02/01
7.3.9 Dual Color 8-Bit Panel Timing

Figure 7-23: Dual Color 8-Bit Panel Timing

VDP = Vertical Display Period = (REG[06h] bits 1-0, REG[05h] bits 7-0) + 1 Lines
VNDP = Vertical Non-Display Period = REG[0Ah] bits 5-0 Lines
HDP = Horizontal Display Period = ((REG[04h] bits 6-0) + 1) x 8Ts
HNDP = Horizontal Non-Display Period = (REG[08h] + 4) x 8Ts
VDP
FPLINE
FPDAT[7:0]
FPFRAME
FPLINE
DRDY (MOD)
DRDY (MOD)
VNDP
1-R1
1-G1
1-B1
1-R2
1-G2
1-B2
1-R3
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
241-
B639
241-
R640
241-
G640
241-
B640
241-R1
241-G1
241-B1
241-R2
241-G2
241-B2
241-R3
241-G3
241-B3
241-R4
241-G4
241-B4
241-R5
241-G5
241-B5
241-R6
241-G6
241-B6
241-R7
241-G7
241-B7
241-R8
241-G8
241-B8
1-B7
FPSHIFT
HDP HNDP
* Diagram drawn with 2 FPLINE vertical blank period
Example timing for a 640x480 panel
LINE 1/241 LINE 2/242 LINE 239/479 LINE 240/480 LINE 1/241
FPDAT6
FPDAT5
FPDAT4
FPDAT3
FPDAT2
FPDAT1
FPDAT0
FPDAT7