FPD85310VJD National Semiconductor, FPD85310VJD Datasheet - Page 27

• Manufacturer Part Number: FPD85310VJD
• Description: IC CTRLR PANEL TIMING 100-TQFP
• Manufacturer: National Semiconductor
• Type: Panel Timing Controllerr

Specifications of FPD85310VJD

• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Frequency-max: -
• Output: -
• Input: -
• Other names: *FPD85310VJD

APPENDIX A: GPO Programming
Examples
GPO Programming Example #3:
Generate a control signal which toggles during horizontal
blanking and alternates polarity each frame. This control sig-
nal is used as the reversal signal.
Control is active beginning at line 1 and remains active for
769 lines.
(Odd number programmed in Duration Register causes con-
trol signal to alternate polarity each frame)
GPO Vertical Start Register = 1
GPO Vertical Duration Register = 769d (301h)
Positive going pulse causes output to toggle. Edge occurs
20 output clocks after end of each line (1024/2 + 20 = 532).
Pulse duration is not critical since the output will be in toggle
mode. (Dual Bus output clock = 32.5 MHz for 65 MHz XGA
video, 1024 pixels/line, 768 lines/frame).
Note: 6 counts are added to the output start # because the GPO pixel count
GPO Horizontal Start Register = 538 (238h)
GPO Horizontal Duration Register = 10d (0Ah)
The control pulses are positive (bit [0] = 0) and the toggle cir-
cuitry is enabled (bit1 [1] = 1).
GPO Control Register = 2
(For a second control signal of opposite polarity, program an-
other GPO Control Register with same count values with
GPO Control Register = 3.)
begins 6 clocks prior to the output data.
(Continued)
27
Horizontal time (clocks/line) = 1300 dot clocks
Vertical period (lines/frame) = 850 lines
DS101086-25
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