SCAS290 datasheet(48/53 Pages) TI

부품명	SCAS290

상세설명	This users guide describes the characteristics, operation, and use of the TLV320AIC3204EVM-K.

PDF	53 Pages

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제조업체	TI [Texas Instruments]

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USB-MODEVM Protocol

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

with 0x20 - in the preceding first example, the returning packet is:

[0] 0x31

[1] 0xA0

[2] 0x02

[3] 0x05

[4] 0xAA

[5] 0x55

If for some reason the interface fails (for example, the I

2C device does not acknowledge), it comes 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 as previously

described, the return packet is:

[0] 0x93

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

[1] 0xA0

[2] 0x02

[3] 0x05

[4] 0xAA

[5] 0x55

The preceding examples used writes. Reading is similar:

Read two bytes from device starting at register 5 of an I

2C device with address A0:

[0] 0x01

[1] 0xA0

[2] 0x02

[3] 0x05

USB-MODEVM Protocol

SLAU266A – October 2008 – Revised October 2012

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SCAS290 데이터시트(PDF) 48 Page - Texas Instruments