EL640.480-A SB Series Operations Manual (020-0358-00A)
12
Figure 3. VGA Mode
Table 7. 350 Row VGA Modes.
Description
Unit
Note
T1 Vertical Border
6
tHS
1
T2 Vertical Front Porch
31/32
tHS
2
T3 VS Pulse Width
2
tHS
3
T4 Vertical Back Porch
53/54
tHS
T5 Vertical Border
6
tHS
1
HS pulses / VS
449
VS frequency
70
Hz
Description 320
640
720
Unit
Note
T6 Horizontal Border
8
8
9
tVCLK
4
T7 Horizontal Front Porch
1-7
8/11
9
tVCLK
5
T8 HS Pulse Width
32-51
64-103 104-111
tVCLK
6
T9 Horizontal Back Porch
12 37/40 45 tVCLK
T10 Horizontal Border
8
8
9
tVCLK
7
VCLK pulses / HS
400
800
900
HS period
31.8
31.8
31.8
µs
1. Borders are displayed but otherwise
ignored by the display controller,
value is for typical system timing.
2. Min. 2 HS- (130-T1-T4-T5
[in tHS]) x 3 µs + 60 µs.
3. Min. 1 x tVCLK.
4. Ignored in 320 column mode.
5. Used for 320 column mode
sensing. Typical value there is 4.
6. Used for column mode sensing. Typical
values are 48, 96 and 108 for 320, 640 and
720 column modes respectively.
7. Size of removed border in 320 mode.
