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參數(shù)資料
| 型號： | GM2125 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | ANALOG INTER FACE XGA/SXGA ONPANEL LCD PANEL CONTROLLER |
| 中文描述： | 模擬國際米蘭的XGA / SXGA ONPANEL液晶顯示器控制器 |
| 文件頁數(shù)： | 16/54頁 |
| 文件大小： | 1339K |
| 代理商： | GM2125 |
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***
Genesis Microchip Confidential ***
gm2115/25 Preliminary Data Sheet
June 2002
14
C2115-DAT-01B
4. FUNCTIONAL DESCRIPTION
A functional block diagram is illustrated below. Each of the functional units shown is
described in the following sections.
Test Pattern
Generator
Triple ADC
and PLL
Output
Data
Path
Host
Interface
OSD
RAMs
OSD
Controller
Panel
Timing
Controller
MCU
RAM
Internal
ROM
External
ROM I/F
8051-style
Micro-
controller
Parallel
ROM IF
Serial Host I/F
GPIO
Gamma
Control
Clock
Generation
Crystal
Reference
Zoom /
Shrink /
Filter
Brightness /
Contrast /
Hue / Sat /
RealColor /
Moire
Image
Capture /
Measure-
ment
NVRAM
Serial I/F
Timing
Control
Signals
Panel Data
Analog RGB
Input
Figure 3.
gm2115/25 Functional Block Diagram
4
4
.
.
1
1
C
C
l
l
o
o
c
c
k
k
G
G
e
e
n
n
e
e
r
r
a
a
t
t
i
i
o
o
n
n
The gm2115/25 features two clock inputs. All additional clocks are internal clocks derived
from one or both of these:
1. Crystal Input Clock (TCLK and XTAL). This is the input pair to an internal crystal
oscillator and corresponding logic. A 14.3 MHz TV crystal is recommended. Other
crystal frequencies may be used, but require custom programming. This is illustrated in
Figure 4 below. Alternatively, a single-ended TTL/CMOS clock oscillator can be driven
into the TCLK pin (leave XTAL as N/C in this case). This is illustrated in Figure 7
below. This option is selected by connecting a 10K
pull-up to ROM_ADDR13 (refer to
Table 16). See also Table 13.
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