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The recording digital data via i.LINK/network is sent to
PIER G4 (IC1900) via the PCI bus and written to
PIER_SDRAM (IC1901 to IC1904).
While recording on a disc, the data in PIER_SDRAM
(IC1901 to IC1904) is sent to the DR-606 board via the
ATA interface.
<Playback system>
The playback video data and the Proxy video data are sent
to PIER G4 (IC1900) via the ATA interface and written to
PIER_SDRAM (IC1901 to IC1904).
The playback digital video data in PIER_SDRAM (IC1901
to IC1904) is sent to the MPEG2-VIDEO Codec (TORI-
NO: IC1200, IC1400). Decode processing is performed
and then the data is sent to LVIS (IC400).
The playback Proxy video data in PIER_SDRAM (IC1901
to IC1904) is sent from PIER G4 (IC1900) to LVIS
(IC400) and decode processing is performed.
The Proxy video data is used as the video signal during the
search.
The playback video data in PIER_SDRAM (IC1901 to
IC1904) is provided to i.LINK/network via the PCI bus as
the MXF file data.
3. Sync signal system
Whether the status is on record or on playback, 74/27 MHz
clock, HD-F, HD-V, HD-H, HD-PB-F, SD-F, SD-V, and
SD-H that are always input from the DCP-44 board are the
reference signal.
Based on these reference clocks, the video sync timings
and system timings are generated.
1-2-4. System Control
SY-355 board
1. Disc record/playback system control
The following functions are realized using the RISC
microprocessor (hereinafter refer to as CPU: IC 200) as the
CPU for the system control on the SY-355 board.
<PCI bus interface>
CPU is connected to PIER G4 (IC1900/DVP-45 board)/
FAM controller on the DVP-45 board and PCI-PCI Bridge
(IC900) via the PCI bus interface to receive and send data
with one another and perform control.
The PCI bus interface communicates with the following
devices by relaying through PIER G4 (IC1900/DVP-45
board).
. CAVA (IC200/DVP-45 board)
1-6
. MPEG2-VIDEO CODEC (IC1000, 1200, 1400/DVP-45
board)
. AUDIO REC/PB DSP (IC800, 801/DVP-45 board)/
AUDIO Low Resolution DSP (IC900/DVP-45 board)
. LVIS (IC400/DVP-45 board)
. Optical Drive (DR-606 board)
. AT microprocessor (AT-177 board)
. FP microprocessor (FP-157 board)
. Character generator (IC503/DCP-44 board)
. LTC generator/reader (PIER G4 (IC1900) built-in)
The PCI bus interface is connected to the Linux system on
the SY-355 board via the PCI-PCI Bridge (IC900/SY-355
board) and receives and sends data to the controllers.
<Memory controller>
. SDRAM (SY-355 board: IC201 to 204) control (32 bit x
64M word)
. Flash memory (IC505, IC506/SY-355 board) control (32
bit x 16 M word)
<Serial interface>
. EEPROM control saving the setting data
<External control bus (CPU LOCAL bus)>
. IN port/OUT port control
RESET signal output on each device, loading the switch
setting, and similar signals
. CAVA/PIER G4/FAM/BRIDGE each FPGA
configuration
. FRAM (IC507/SY-355 board) control
2. Application device control system (Linux)
This is the system that uses RISC microprocessor
(hereinafter refer to as CPU: IC1300) on the SY-355 board
to control the device for the application. Linux is used as
the OS.
CPU and peripheral circuit configuration is almost same as
that of the system control.
<PCI bus interface>
The CPU exchanges data with the USB controller
(IC1500) via the PCI bus interface. In addition, the CPU
exchanges the data with the CPU of the system control via
the PCI-PCI Bridge (IC500/SY-355 board) on the same
bus.
<PCI BRIDGE (IC900)>
The functions of PCI BRIDGE are data relay of the PCI
bus and the I/F function to the OSD display controller on
the LVIS (IC400/DVP-45 board).
PDW-700/V1 (E)
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