ade3700 STMicroelectronics, ade3700 Datasheet - Page 45

• Manufacturer Part Number: ade3700
• Description: Analog Lcd Display Engine For Xga And Sxga Resolutions
• Manufacturer: STMicroelectronics

ADE3700
2.11
2.11.1 Frame Synchronization
2.11.2 Timing Unit
2.11.3 Signal Generation
Output Sequencer
The Output Sequencer module synchronizes timing for the output video interface. It allows sufficient
flexibility to support a broad range of Smart Panel applications as well using the Output Timing
Controller (TCON) module, refer to
horizontal and vertical counters, which are locked with the input video stream.
Due to the limited pixel memory of the chip, the output active video needs to be perfectly
synchronized with the input active video. This mode of operation is called Frame Lock .
The Timing Unit consists of a 12-bit horizontal and 12-bit vertical counter. It is synchronized with the
input video stream.
The Signal Generation unit can generate all fixed control signals like hsync, vsync and data enable
as well as those required to run the internal data path. The fixed control signals appear on the
Figure 5: Output Sequencer and Timing Controller Block Diagram
hs, vs, den
fixed (OSQ)
horizontal
Figure 6: Frame Lock Operation
signal generation
I
timing unit
2
C Interface
programmable (TCON)
Section 2.12
vertical
tcon [o:13]
for more details. The timing unit is based on
delay
vert_start
Output Sequencer
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