DRX-2
DRX-2
112
VIP7118
7004
ADV7196
CHRYSALIS
PNX7100
7703
7400
SDRAM
BE INTERFACE
7804
133MHz
SDRAM
7812
1394 LINK
7201
AUDIO PLL
27 MHz
Osc.
7300
OPTIONAL
1394 PHY
24.576 MHz
24.576 MHz
7200
4 MHz
5.3 Playback Mode
During playback, the serial data from the DVDR
mechanism is going directly to the PNX7100 via the serial
front-end I2S interface.
The PNX7100 is an MPEG CoDec and has the following
outputs:
• To the analogue board: analogue video RGB, YC,
CVBS on connector 1904.
• I2S audio (PCM format) on connector 1900.
• SPDIF audio (digital audio output) on connector 1904.
• Progressive video on connector 1704.
• Communication gateway (RS232) on connector 1104.
5.4 DVDR Mechanism Interfaces
AV2 DVDR Mechanism (VAE8015 and VAE8020)
The UART interface (for the S2B commands) between the
Chrysalis and the servo processor (MACE3 on the BE
module), controls the AV2 DVDR mechanism during
record and playback mode. For data transport, an I2S bus
is used.
For detailed information on the AV2 BE module, see
Service Manual 3122 785 12470.
AV3 DVDR Mechanism (VAE8030)
To be prepared for new developments, the Chrysalis
Digital Board is equipped with two IDE busses (ATAPI).
They can be used for connecting to the new generation
DVDR mechanism (e.g. the AV3), a Hard Disc Drive
(HDD), or a Smart Card Reader.
5.5 Clock Distribution
Clock distribution on Chrysalis board
The PNX7100 has a complex clock system, which is
needed to support the processes running at different
frequencies such as video decoding, audio decoding or
peripheral I/O devices etc.
To ensure a synchronous initialization of all the registers
and state machines, all the PLLs are switched to their
default frequency and the reset sequence is run at 4 MHz.
Then when the booting control unit is correctly initialized
and once it has captured all the booting parameters, it sets
the PLLs to its functional frequency to allow the modules
to run at their nominal frequencies. Thanks to a clock
blocking mechanism, the frequency switching is glitch
free.
System clocks:
• PNX7100 (IC7400, pins AF9 and AF10) : 4 MHz
provided by the xtal oscillator 7402.
Summary of Contents for DRX-2
Page 105: ...DRX 2 DRX 2 105 3 6 Video routing Video IO Europe ...
Page 109: ...DRX 2 DRX 2 109 4 4 Video routing Video IO NAFTA ...
Page 119: ...DRX 2 DRX 2 119 IC DATA Display Board IC7103 TMP87CH74F ...
Page 120: ...DRX 2 DRX 2 120 IC7103 TMP87CH74F ...
Page 121: ...DRX 2 DRX 2 121 IC7103 TMP87CH74F ...
Page 132: ...DRX 2 132 PRINTED CIRCUIT BOARD FRONT DISPLAY P C B Part 1 Bottom View ...
Page 133: ...DRX 2 133 PRINTED CIRCUIT BOARD FRONT DISPLAY P C B Part 2 Bottom View ...
Page 135: ...DRX 2 135 Part 1 Part 2 PRINTED CIRCUIT BOARD U A models ANALOG P C B Bottom View ...
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Page 139: ...DRX 2 139 Part 1 Part 2 PRINTED CIRCUIT BOARD G model ANALOG P C B Bottom View ...
Page 140: ...DRX 2 140 PRINTED CIRCUIT BOARD G model ANALOG P C B Part 1 Bottom View ...
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