Rainbow-electronics MAX9258 Manuel d'utilisateur

General DescriptionThe MAX9257 serializer pairs with the MAX9258 deseri-alizer to form a complete digital video serial link. TheMAX9257/MAX9258 featur

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MAX9257/MAX9258Detailed DescriptionThe MAX9257 serializer pairs with the MAX9258 deseri-alizer to form a complete digital video serial link. Theelectr

parity encoding that adds two parity bits to the serialword. Bit 0 (EN0) is the LSB that is serialized first with-out parity enabled. The parity bits

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MAX9257/MAX9258Tables 1 and 2 show the default power-up values forthe MAX9257/MAX9258 registers. Tables 3 and 4 showthe input and output supply refere

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MAX9257/MAX9258Pixel Clock Frequency RangeThe MAX9257/MAX9258 each have registers that canbe configured at startup. Depending on the wordlength, the M

tracks and passes the spread to the data and clock out-puts. The PRATE range of 00 and 01 (5MHz ≤ PCLK ≤20MHz) supports all the spread options. The P

MAX9257/MAX9258A GPIO can be programmed to drive an LVCMOS logiclevel or to read a logic input. The register bit that setsthe output level when the GP

The LOCK and ERROR outputs can be wired in anAND configuration if you have multiple serializers anddeserializers, or a single serializer fanned out to

MAX9257/MAX9258register REG2 for both the MAX9257 and the MAX9258.The four bits of REG2[7:4] select the divide ratio (STODIV)for the STO clock as a fu

counter bits REG3[3:0] that increment once every ETOclock period. Write to REG3[3:0] to determine thecounter end time. The ETO counter counts to the p

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MAX9257/MAX9258After the control channel closes, there is a brief hand-shake period (T3 in Figure 22 and T5 in Figure 23)between the MAX9257 and the M

Assuming a UART bit rate of 2Mbps, REG2[7:4],REG3[7:4] = 100 (Table 26), CTO = 64, CTO timeoutcalculated as:tCTO= (0.5µs) × 64 = 32µsLink Power-UpThe

MAX9257/MAX9258case, ERROR deasserts high after next video phasestarts if video parity errors were the only reason thatERROR was asserted low. To repo

Control ChannelOverview of Control Channel OperationThe control channel is used by the ECU to programregisters in the MAX9257, MAX9258, and peripheral

MAX9257/MAX9258UART-to-I2C ConverterThe UART-to-I2C converter accepts UART read or writepackets issued by the ECU and converts them to an I2Cmaster pr

sent, but since CTO timed out, bypass mode ends andbase mode is active for the next vertical blanking period. With STO > CTO > ETO, bypass mode

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ESD ProtectionThe MAX9257/MAX9258 ESD tolerance is rated forHuman Body Model, Machine Model, IEC 61000-4-2and ISO 10605. The ISO 10605 and IEC 61000-4

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MAX9257/MAX9258Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit paten

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MAX9257 SUPPLY CURRENTvs. FREQUENCYMAX9257/58 toc01PCLK FREQUENCY (MHz)SUPPLY CURRENT (mA)20 4025 3515 3010204060801001200545PRBS PATTERN18-BIT100% PR

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