For both SxS memory card data and external USB3.0 device data, the output data stored in the DDR memory is DMA-
transferred to the Ethernet interface IC (IC600) on the SY-425 board through the PCIe interface and is converted. Then
the converted data is output from the network connector (CN600).
HDMI output
HD/SD playback video signals are sent from ROVO to VSW (IC801) on the VPR-118 board. Data for OSD is sent from
KMBC on the HPR-46 board to VSW.
The OSD data format is converted in VSW in accordance with the HDMI output format.
Then the OSD data is switched with HD/SD video signals, and is then sent to the HDMI TRANSMITTER (IC603) on
the VPR-118 board, in which the OSD data is converted to a serial signal together with the audio signal. Then the serial
signal is output from the HDMI connector CN3 on the VPR-118 board.
1-13-2. Audio Signal Processing System
Recording System
Analog audio input
The analog audio signals input from the AUDIO INPUT connector (CN100, CN200/AU-351 board) are converted into
the serial digital audio signals (2-channel) in the audio A/D converter (IC108) on the AU-351 board, and then input into
the FPGA (hereafter called VAX: IC200) on the HPR-46 board.
SDSDI/HDSDI input
The digital audio signal included in the HDSDI signal input from the SD/HDSDI INPUT connector (CN1/VPR-118
board) is separated and extracted on the ROVO and then input into VAX on the HPR-46 board via the CN31/VPR-118
board.
The digital audio signal is separated and extracted in VAX in case of SDSDI input.
The above input signals input into VAX are selected with the AUDIO INPUT SEL button on the front panel for each
recording channel, multiplexed and sent to REC AUDIO DSP (IC1500/HPR-46 board). The REC AUDIO DSP (IC1500)
performs signal processing, such as delay processing, recording level control, and muting, and then sends the signal
back to VAX as the digital audio signal for recording. The returned data is multiplexed and sent from VAX to PIERe
(IC1200/HPR-46 board) as the digital audio signal for recording to be written into the PIERe SDRAM (IC1305 to
IC1308).
The proxy audio data for recording is compressed in the PROXY AUDIO DSP (IC1600, IC1601) based on the digital
audio signal for recording of the PIERe SDRAM to be written into the PIERe SDRAM as the proxy audio data for
recording.
Audio record data and proxy audio data that are written to the PIERe SDRAM are sent to the CPU board together with
video record data and proxy video data.
Then the data is output from the CPU board as record data, and is then written to the SxS memory card.
Network input
The digital record data that is input from the network connector CN600 on the SY-425 board is converted by the Ethernet
interface IC (IC600). The converted data is DMA-transferred to the DDR memory in the Linux CPU (CPU board) on
the HPR-46 board with the PCI Express (PCIe) interface.
• Writing data to SxS memory card
The record data saved in the DDR memory is DMA-transferred to the PCIe / SATA Bridge IC (IC2701) on the
HPR-46 board with the PCIe interface, and is then converted to the SATA signal. Then the SATA signal is sent
through the CN-3594 board to the DIF-221 board.
The SATA signal is converted to data by the SATA / ATA Bridge ICs (IC201, IC401), ATA / PCI Bridge ICs (IC202,
IC402), and PCI /PCIe Bridge ICs (IC206, IC406) on the DIF-221 board. Then the converted data is sent to the
EC-76 board and is written to the SxS memory card (CN901, CN902).
PMW-1000
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