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Table 2-6
NMG2090 Pin Descriptions (continued)
Pin Name
Panel Interface (continued)
FPVCC
FPVEE
FPBACK
PDATA23
PDATA22
PDATA21
PDATA20
PDATA19
PDATA18
PDATA17/LCD-ID0
PDATA16/LCD-ID1
PDATA15/LCD-ID2
PDATA14/LCD-ID3
PDATA13
PDATA12
PDATA11
PDATA10
PDATA9
PDATA8
PDATA7
PDATA6
PDATA5
PDATA4
PDATA3
PDATA2
PDATA1
PDATA0
CRT Interface
VSYNC
HSYNC
R
G
B
Type
Pin No.
O
142
O
143
O
108
O
18
17
16
15
14
13
I/O
117
I/O
118
I/O
119
I/O
120
121
122
123
124
126
127
128
129
130
131
135
137
139
140
O
90
T/S
O
89
T/S
O
98
(Analog
)
O
97
(Analog
)
O
96
(Analog
)
Flat Panel VCC This is used to control the logic power to the
panels.
Flat Panel VEE This is used to control the bias power to the
panels
Flat Panel Backlight This is used to control the backlight
power to the panels
Panel Data These pins are used to provide the data interface
to different kinds o' panels. The following table shows the
functions of these pins based on the selected panel type.
PDATA23 thru PDATA18 pin are not available in VL-Bus
mode, these pins are used for A18 thru A23.
LCD_ID [3..0] pins are general purpose read only bits which
can be used for panel identification. During RESET# these
LCD_ID pins are inputs. The state of these bits are reflected
in register CR2Eh bits3:0.The state of these bit can also be
sampled anytime on-the-fly through register GR17 bit-
3.1nternally these pins are pulled-up recommended external
pull down resistor value is 47k ohm.
CRT Vertical Sync This output is the vertical T/S
synchronization pulse for the CRT monitor.
CRT Horizontal sync This output is the horizontal T/S
synchronization pulse for the CRT monitor.
RED This DAC analog output drives the CRT interface.
GREEN This DAC analog output drives the CRT interface.
BLUE This DAC analog output drives the CRT interface.
Descriptions
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