5000 datasheet(55/60 Pages) TI1

Il numero della parte	5000

Spiegazioni elettronici	TLV320AIC3104EVM and TLV320AIC3104EVM-PDK

PDF	60 Pages

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Produttore elettronici	TI1 [Texas Instruments]

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USB-MODEVM Protocol

If the command is sent with no problem, the returning byte [0] should be the same as the sent one

logically ORed with 0x20 - in our first example above, the returning packet should be:

[0]

0x31

[1]

0xA0

[2]

0x02

[3]

0x05

[4]

0xAA

[5]

0x55

If for some reason the interface fails (for example, the I2C device does not acknowledge), it would come

back as:

[0]

0x51

--> interface | INTF_ERROR

[1]

0xA0

[2]

0x02

[3]

0x05

[4]

0xAA

[5]

0x55

If the request is malformed, that is, the interface byte (byte [0]) takes on a value which is not described

above, the return packet would be:

[0]

0x93

--> the user sent 0x13, which is not valid, so 0x93 returned

[1]

0xA0

[2]

0x02

[3]

0x05

[4]

0xAA

[5]

0x55

Examples above used writes. Reading is similar:

Read two bytes from device starting at register 5 of an I2C device with address A0:

[0]

0x01

[1]

0xA0

[2]

0x02

[3]

0x05

SLAU218 – August 2007

USB-MODEVM Protocol

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