Genesis Microchip Inc.
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Genesis Microchip Publication
PRELIMINARY DATA SHEET
gm2110 / gm2120
XGA/SXGA LCD Monitor Controller with
Integrated Analog Interface
*** Genesis Microchip Confidential ***
Publication number: C2120-DAT-01C
Publication date: June 2002
***
Genesis Microchip Confidential ***
gm2110/20 Preliminary Data Sheet
Revision History
Document Description
Date
C2120-DAT-01A
Initial release
Nov 2001
C2120-DAT-01B
Changed title from gm2120 to gm2110/20 Data Sheet
In Figure 10, the recommended ADC input termination resistance changed
from 100 ohms to 20 ohms and 57.6 ohms for the RED+ and RED- signals
respectively, as these values yield better performance
Clarified that input formats with resolutions higher than that supported by the
LCD panel are supported as recovery modes only in section 4.3.2
Corrected the shrink description in section 4.7.2
Added section 4.13.3 ISP of FLASH ROM Devices
Added section 4.13.4 UART Interface.
Added section 4.13.5 DDC2Bi Interface
Added gm2110 DC Characteristics to Table 18 & Table 19 in section 5.1
Added gm2110 ordering information in section 6
April 2002
D2120-DAT-01C
Pins 143 ~ 146: changed xxx_SDDS or xxxx_SDDS to xxx_DDDS or xxxx_DDDS
respectively
Pins 138 ~ 141: changed xxx_DDDS or xxxx_DDDS to xxx_SDDS or xxxx_SDDS
respectively
Pins 147 ~ 148: changed xxx_DPLL to xxx_RPLL
June 2002
***
Genesis Microchip Confidential ***
gm2110/20 Preliminary Data Sheet
Related documents
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Trademarks: RealColor and Real Recovery are trademarks of Genesis Microchip Inc.
Copyright 2002, Genesis Microchip Inc. All Rights Reserved.
Genesis Microchip Inc. reserves the right to change or modify the information contained herein without notice.
Please obtain the most recent revision of this document. Genesis Microchip Inc. makes no warranty for the use of
its products and bears no responsibility for any errors or omissions that may appear in this document.
***
Genesis Microchip Confidential ***
gm2110/20 Preliminary Data Sheet
June 2002
C2120-DAT-01C
iii
Table Of Contents
1. Overview ............................................................................................................................................ 1
1.1 gm2110/20 System Design Example ........................................................................................... 1
1.2 gm2110/20 Features..................................................................................................................... 2
2. gm2110/20 Pinout .............................................................................................................................. 3
3. gm2110/20 Pin List ............................................................................................................................ 4
4. Functional Description ..................................................................................................................... 10
4.1 Clock Generation ....................................................................................................................... 10
4.1.1 Using the Internal Oscillator with External Crystal ..................................................... 11
4.1.2 Using an External Clock Oscillator.............................................................................. 13
4.1.3 Clock Synthesis ............................................................................................................ 14
4.2 Hardware Reset.......................................................................................................................... 15
4.3 Analog to Digital Converter....................................................................................................... 16
4.3.1 ADC Pin Connection.................................................................................................... 16
4.3.2 ADC Characteristics..................................................................................................... 17
4.3.3 Clock Recovery Circuit ................................................................................................ 17
4.3.4 Sampling Phase Adjustment......................................................................................... 18
4.3.5 ADC Capture Window ................................................................................................. 18
4.4 Test Pattern Generator (TPG) .................................................................................................... 19
4.5 Input Format Measurement........................................................................................................ 20
4.5.1 HSYNC / VSYNC Delay ............................................................................................. 20
4.5.2 Horizontal and Vertical Measurement.......................................................................... 21
4.5.3 Format Change Detection............................................................................................. 21
4.5.4 Watchdog...................................................................................................................... 22
4.5.5 Internal Odd/Even Field Detection (For Interlaced Inputs to ADC Only) ................... 22
4.5.6 Input Pixel Measurement.............................................................................................. 22
4.5.7 Image Phase Measurement ........................................................................................... 22
4.5.8 Image Boundary Detection........................................................................................... 23
4.5.9 Image Auto Balance ..................................................................................................... 23
4.6 RealColor
TM
Digital Color Controls .......................................................................................... 23
4.6.1 RealColorTM Flesh tone Adjustment............................................................................. 23
4.6.2 Color Standardization and sRGB Support.................................................................... 24
4.7 High-Quality Scaling ................................................................................................................. 24
4.7.1 Variable Zoom Scaling................................................................................................. 24
4.7.2 Horizontal and Vertical Shrink..................................................................................... 24
4.7.3 Moir Cancellation ....................................................................................................... 24
4.8 Bypass Options .......................................................................................................................... 24
***
Genesis Microchip Confidential ***
gm2110/20 Preliminary Data Sheet
June 2002
C2120-DAT-01C
iv
4.9 Gamma LUT .............................................................................................................................. 25
4.10 Display Output Interface.......................................................................................................... 25
4.10.1 Display Synchronization ............................................................................................ 25
4.10.2 Programming the Display Timing .............................................................................. 25
4.10.3 Panel Power Sequencing (PPWR, PBIAS) ................................................................ 27
4.10.4 Output Dithering......................................................................................................... 27
4.11 Energy Spectrum Management (ESM) .................................................................................... 28
4.12 OSD.......................................................................................................................................... 28
4.12.1 On-Chip OSD SRAM................................................................................................. 28
4.12.2 Color Look-up Table (LUT)....................................................................................... 29
4.13 On-Chip Microcontroller (OCM)............................................................................................. 30
4.13.1 Standalone Configuration........................................................................................... 30
4.13.2 Full-Custom Configuration ........................................................................................ 31
4.13.3 In-System-Programming (ISP) of FLASH ROM Devices ......................................... 32
4.13.4 UART Interface .......................................................................................................... 33
4.13.5 DDC2Bi Interface....................................................................................................... 33
4.13.6 General Purpose Inputs and Outputs (GPIO's) .......................................................... 33
4.14 Bootstrap Configuration Pins................................................................................................... 34
4.15 Host Interface........................................................................................................................... 35
4.15.1 Host Interface Command Format ............................................................................... 35
4.15.2 2-wire Serial Protocol................................................................................................. 36
4.16 Miscellaneous Functions.......................................................................................................... 37
4.16.1 Low Power State......................................................................................................... 37
4.16.2 Pulse Width Modulation (PWM) Back Light Control................................................ 37
5. Electrical Specifications ................................................................................................................... 38
5.1 Preliminary DC Characteristics ................................................................................................. 38
5.2 Preliminary AC Characteristics ................................................................................................. 40
6. Ordering Information ....................................................................................................................... 41
7. Mechanical Specifications................................................................................................................ 42
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