User`s manual

7: A.C. CHARACTERISTICS
S1D13504 SERIES HARDWARE FUNCTIONAL EPSON 1-41
SPECIFICATION (X19A-A-002-17)
7.4.3 Single Monochrome 4-Bit Panel Timing
Figure 7-24 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
∗ Example timing for a 320x240 panel. Diagram drawn with 2 FPLINE vertical blank period.
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
UD[3:0], UD[3:0]
UD2
UD1
UD0
UD3