Intel D525 AU80610006225AA Manuale Utente
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AU80610006225AA
Signal Description
22
Datasheet
2.5
Analog Display Signals
Table 2-10.Analog Display Signals
Signal Name
Description
Direction
Type
CRT_RED
RED Analog Video Output: This signal is a CRT
Analog video output from the internal color palette
DAC. The DAC is designed for a 37.5 Ohm routing
impedance but the terminating resistor to ground
will be 75 Ohms (e.g., 75 Ohm resistor on the
board, in parallel with 75 Ohm CRT load).
Analog video output from the internal color palette
DAC. The DAC is designed for a 37.5 Ohm routing
impedance but the terminating resistor to ground
will be 75 Ohms (e.g., 75 Ohm resistor on the
board, in parallel with 75 Ohm CRT load).
O
Analog
CRT_GREEN
GREEN Analog Video Output: This signal is a CRT
Analog video output from the internal color palette
DAC. The DAC is designed for a 37.5 Ohm routing
impedance but the terminating resistor to ground
will be 75 Ohms (e.g., 75 Ohm resistor on the
board, in parallel with 75 Ohm CRT load).
Analog video output from the internal color palette
DAC. The DAC is designed for a 37.5 Ohm routing
impedance but the terminating resistor to ground
will be 75 Ohms (e.g., 75 Ohm resistor on the
board, in parallel with 75 Ohm CRT load).
O
Analog
CRT_BLUE
BLUE Analog Video Output: This signal is a CRT
Analog video output from the internal color palette
DAC. The DAC is designed for a 37.5 Ohm routing
impedance but the terminating resistor to ground
will be 75 Ohms (e.g., 75 Ohm resistor on the
board, in parallel with 75 Ohm CRT load).
Analog video output from the internal color palette
DAC. The DAC is designed for a 37.5 Ohm routing
impedance but the terminating resistor to ground
will be 75 Ohms (e.g., 75 Ohm resistor on the
board, in parallel with 75 Ohm CRT load).
O
Analog
CRT_IRTN
Current return path. Shorted to ground
O
Analog
DAC_IREF
Resistor Set: Set point resistor for the internal color
palette DAC. A 665 Ohm 0.5% resistor is required
between DAC_IREF and motherboard ground.
palette DAC. A 665 Ohm 0.5% resistor is required
between DAC_IREF and motherboard ground.
I/O
Analog
CRT_HSYNC
CRT Horizontal Synchronization: This signal is used
as the vertical sync (polarity is programmable) or
“sync interval”. 3.3V output.
as the vertical sync (polarity is programmable) or
“sync interval”. 3.3V output.
O
HVCMOS
CRT_VSYNC
CRT Vertical Synchronization: This signal is used as
the vertical sync (polarity is programmable). 3.3V
output.
the vertical sync (polarity is programmable). 3.3V
output.
O
HVCMOS
CRT_DDC_CLK
Monitor Control Clock
I/O
COD
CRT_DDC_DATA
Monitor Control Data
I/O
COD