Cypress Semiconductor Quad HOTLink II CYV15G0404RB Uživatelská příručka stáhnout pdf (Strana 15)

Quad Independent Channel

HOTLink II™ CYV15G0404DXB

Video PHY Demonstration Board

Page 15 of 92

If the output is to be viewed on a Tektronix WFM 700 waveform monitor, the user should not select the 360 Mb/s or 540 Mb/s

options because this waveform monitor does not support these data rates, and consequently, no images will be displayed on the

monitor.

Auto Rate Detect

When the Auto Rate Detect button is selected, the programmable clock is reconfigured to match the incoming video data rate

and all other data rate buttons will be disabled. Upon clicking “Run,” various rates are attempted until a valid SMPTE data rate is

detected on the input. This is shown as the last button in Figure 5-2. During the Auto Rate Detection function, a radial dot loops

through each data rate as it is attempted. If the data rate is successfully detected, the dot stops next to the rate of the incoming

data stream. For this feature to function, the programmable clock option must be selected.

5.2 Serial Interface I/O Selection

Each HOTLink II transmit channel has redundant outputs. Either one or both outputs can be enabled to transmit the same data.

When TxPrim is checked, the primary serial outputs OUTx1 are enabled. When TxSec is checked, the secondary serial outputs

OUTx2 are enabled. Note that both primary and secondary outputs can be enabled simultaneously. Each HOTLink II receive

channel has selectable dual inputs. Either INx1 (RxPrim) or INx2(RxSec), but not both, can be selected as the input serial data

source for the respective channel. See Figure 5-3 for a picture of the GUI panel.

5.3 Standard

The first box in the top of the GUI sets the video standard. For SD, the supported SMPTE formats are NTSC and PAL as shown

in Figure 5-4. For HD, the supported format is 1080i and upon selecting 1485 Mb/s in the “Tx/Rx Rate” panel, the “Standard”

panel will reflect the HD standard as shown in Figure 5-5.

Figure 5-2. GUI–Setting the Data Rate

Figure 5-3. GUI–Selecting the Serial I/Os

Figure 5-4. GUI–Selecting the Standards–SD

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Cypress Semiconductor Quad HOTLink II CYV15G0404RB Uživatelská příručka Strana 15