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Hardware Functional Specification S1D13504
Issue Date: 01/01/30 X19A-A-002-18
7.4.3 Single Monochrome 4-Bit Panel Timing

Figure 7-19: Single Monochrome 4-Bit 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

VDP
FPLINE
FPSHIFT
LINE1 LINE2 LINE3 LINE4 LINE239 LINE240
FPFRAME
LINE1 LINE2
FPLINE
MOD
1-2 1-6 1-318
1-3 1-7 1-319
1-4 1-8 1-320
1-1 1-5 1-317
MOD
VNDP
HDP HNDP
* Diagram drawn with 2 FPLINE vertical blank period
Example timing for a 320x240 panel
UD[3:0], UD[3:0]
UD2
UD1
UD0
UD3