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参数资料
| 型号： | GM3120 |
| 厂商： | Electronic Theatre Controls, Inc. |
| 英文描述： | XGA/SXGA LCD Controller |
| 中文描述： | 的XGA / SXGA LCD控制器 |
| 文件页数： | 17/51页 |
| 文件大小： | 1379K |
| 代理商： | GM3120 |
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***
Genesis Microchip Confidential ***
gm5110/20 Preliminary Data Sheet
June 2002
10
C5110-DAT-01C
4. FUNCTIONAL DESCRIPTION
A functional block diagram is illustrated below. Each of the functional units shown is
described in the following sections.
Serial Host I/F
GPIO
Analog
RGB
Triple
ADC
Parallel
ROM IF
8051-style
Micro-
controller
External
ROM I/F
Image
Capture /
Measure-
ment
Brightness /
Contrast /
Hue / Sat /
RealColor
/
Moire
Gamma
Control
Output
Data
Path
OSD
RAMs
OSD
Controller
NVRAM
Serial I/F
Host
Interface
MCU
RAM
DVI-Compliant
DVI Input
DVI Rx
HDCP
Internal
ROM
Clock
Generation
Crystal
Reference
Zoom /
Shrink /
Filter
Panel Data
and Control
Figure 3.
gm5110/20 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 gm5110/20 features three clock inputs. All additional clocks are internal clocks derived
from one or more 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 18). See also Table 14.
2. DVI Differential Input Clock (RC+ and RC-)
3. Host Interface Transfer Clock (HCLK)
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