ade3000 STMicroelectronics, ade3000 Datasheet - Page 6

• Manufacturer Part Number: ade3000
• Description: Lcd Display Engines With Integrated Dvi, Adc And Yuv Ports
• Manufacturer: STMicroelectronics

Pin Description
6/88
1.1
Sync / Timing
Measurement
Mode Set
Autotune
Digital Contrast /
Brightness
White Point Control In response to user OSD control, the MCU can program three 8b registers that
Gamma
Adjustment
SRGB Control
Pattern Generation For production testing, the ADE3XXX can be programmed by the MCU to output
Flicker Reduction
HDCP
Backlight Control
Low Power State
Feature
Pin #
1
2
3
4
5
Pin Description
YUV6
YUV5
YUV4
YUV3
YUV2
Once an input source is selected, all available information on frequencies and
line/pixel counts is measured for the selected source and made available to the
MCU.
Once the MCU has determined the matching video mode or calculated a video
mode using a GTF algorithm, the datapath is programmed to drive the flat panel.
Clock frequencies for the internal memory and datapath are also set at this time.
When the MCU calls for an autotune, the MCU sets up an iterative loop to
search for the best phase, gain, offset, etc. At each step of the loop, the MCU
kicks off a test in which the ADE3XXX which performs extensive statistical
analysis of the incoming data stream. The results of the analysis are made
available to the MCU which is responsible for the optimization algorithm.
In response to user OSD control, the MCU can program single 8b registers that
set brightness and contrast for each color channel independently.
set the white point for the output.
The MCU can program the gamma RAMs to implement 10b accurate color
transformations.
The SRGB block allows simple, intuitive color control with just a few registers.
a wide set of test patterns.
For smart panel applications, the MCU can set up the flicker detection block to
report any correlation with the polarity inversion signal. The MCU can then
change the polarity inversion to a non-correlating pattern to eliminate flicker.
The ADE3XXX contains the BlockCipher and Decryption functions - interactions
over DDC are managed by the MCU for maximum flexibility. The MCU models
the slow (frame rate, e.g. 60 Hz) authentication handshaking and state machine
whereas the ADE3XXX handles the fast (line rate, e.g. 50 kHz) decryption state
machine.
The ADE3XXX provides two PWM outputs for direct control of the power
components in a typical backlight. The MCU sets up the registers and enables
the function.
To enter a low power state, the MCU can gate of most of the clocks and put the
analog blocks into a low power standby state. The DVI block will still report
activity in standby, allowing "wake on connection" operation.
Name
Description of ADE3XXX Operation
Table 1: ADE3xxx Features (Sheet 2 of 2)
Table 2: Pin Description (Sheet 1 of 7)
Type
Input
Input
Input
Input
Input
TV Video Input Port: Data 6
TV Video Input Port: Data 5
TV Video Input Port: Data 4
TV Video Input Port: Data 3
TV Video Input Port: Data 2
Description
SMEAS
GLBL
LLK
SRT
DMUX
SMUX
SCALER
PNL
DMEAS
LLK
ADC
SMUX
SRT
SRGB
SRGB
GAMMA
SRGB
PGEN
FLICKER
TCON
HDCP
PWM
GLBL
Blocks Used
ADE3XXX
32
13
19
30
42
40
49
48
47
19
18
40
30
64
64
74
60
72
55
27
77
13
64
Pages