Functions (Host Interface); Video Dac; System Service - Denon DVD-2900 Service Manual

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Functions (Host interface)

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Pin Name
HD[15:0]
HA[11:0]
BHE
RE
WE
CS
RDY
INTR
INT2
INT3
DREQ
DACK
HMODE[1:0]
HMODE[2]

Video DAC

Pin Name
IREF
AVRI
BIAS1
BIAS2
PAY
PAB
PAC
TE
L 13942296513
DAOUTB
AVDD33 Power
AGND33 Power

System service

Pin Name
CLKIN
CLKO
ACLKI
RESET
TEST[2:0]
VDD18 Power
VDD33 Power
GND Power
AVDD18 Power
AGND18 Power
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I/O
I/O Data I/O.
I Address input.
I Byte High Enable input.
I Read Enable input.
I Write Enable input.
I Chip Select input.
O Acknowledge signal which shows that read-out or the writing of data was completed.
O Interruption request signal over external CPU from M65776AFP.
"L" is outputted at the time of interruption generating and "H" is outputted when other.
O DMA request signal for bit map transmission.
I DMA acknowledge signal for bit map transmission.
I Host interface operation mode setting.
I It fixed to "L" potential..
I/O
I Reference current input.
I Reference voltage input.
I Bias voltage for the source of current.
I Bias voltage for the source of current.
O Analog current output.(for Y)
O Analog current output.(for Pb)
O Analog current output.(for Pr)
O It fixed to Analog Ground..
+3.3V Analog Power supply.
Analog Ground.
I/O
I 27 MHz, system Clock input.
O 27 MHz, Clock output.
I Audio Clock input.
I Hardware Reset.
I It fixed to "L" potential.
+1.8 V Power for internal.
+3.3 V Power for external interface.
Ground.
+1.8 V Power for internal PLL.
It fixed to Ground. Ground for internal PLL.
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Functions
Functions
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Functions
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