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MAX9670 Evaluation Kit
Figure 3. MAX9670 EV Kit Software Main Window (Configuration Control Tab)
Advanced User Interface
There are two methods for communicating with the
MAX9670, through the normal user-interface main win-
dow or through the I 2 C commands available by select-
ing the Options | Interface (Advanced Users) from the
menu bar. An Advanced User Interface window pops
up with the 2-wire interface tab selected, which allows
the SMBus?/I 2 C-compatible protocols, such as Read
Byte and Write Byte , to be executed. The only
SMBus/I 2 C-compatible protocols used by the MAX9670
are:
Detailed Description of Hardware
The MAX9670 EV kit is an assembled and tested PCB
that demonstrates the features of the MAX9670 dual
SCART audio/video switch matrix. It routes audio, video,
and control signals between a set-top box decoder chip
and the TV and VCR SCART connectors. All video con-
nections are made through 75 Ω controlled-impedance
traces. Connect a TV and VCR to the corresponding
SCART connectors. The set-top box decoder video con-
nections are made through the 75 Ω BNC jacks with the
ENC prefix. Audio signals from the stereo audio DAC
?
1 - SMBusWriteByte(addr,cmd,data8)
are connected to the white and red (P4 and P5) RCA
? 4 - SMBusReadByte(addr,cmd) → data8
The combo and edit boxes accept numeric data in
phono jacks. Monitor the R/C inputs of the VCR connec-
tions through the VCR_R/C_IN BNC jack.
hexadecimal and should be prefixed by 0x. See Figure
4 for an example of this tool.
SMBus is a trademark of Intel Corp.
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