
Epson Research and Development
Page 57
Vancouver Design Center
Hardware Functional Specification
S1D13706
Issue Date: 01/11/13
X31B-A-001-08
1.
For passive panels, the HDP must be a minimum of 32 pixels and must be increased by multiples of 16.
For TFT panels, the HDP must be a minimum of 8 pixels and must be increased by multiples of 8.
2.
The following formulas must be valid for all panel timings:
HDPS + HDP
<
HT
VDPS + VDP
<
VT
Table 6-16: Panel Timing Parameter Definition and Register Summary
Symbol
Description
Derived From
Units
HT
Horizontal Total
((REG[12h] bits 6-0) + 1) x 8
Ts
HDP
1
Horizontal Display Period
1
((REG[14h] bits 6-0) + 1) x 8
HDPS
Horizontal Display Period Start Position
For STN panels: ((REG[17h] bits 1-0, REG[16h] bits 7-0) + 22)
For TFT panels: ((REG[17h] bits 1-0, REG[16h] bits 7-0) + 5)
HPS
FPLINE Pulse Start Position
(REG[23h] bits 1-0, REG[22h] bits 7-0) + 1
HPW
FPLINE Pulse Width
(REG[20h] bits 6-0) + 1
VT
Vertical Total
(REG[19h] bits 1-0, REG[18h] bits 7-0) + 1
Lines (HT)
VDP
Vertical Display Period
(REG[1Dh] bits 1-0, REG[1Ch] bits 7-0) + 1
VDPS
Vertical Display Period Start Position
REG[1Fh] bits 1-0, REG[1Eh] bits 7-0
VPS
FPFRAME Pulse Start Position
REG[27h] bits 1-0, REG[26h] bits 7-0
VPW
FPFRAME Pulse Width
(REG[24h] bits 6-0) + 1