Texas Instruments PCM2706 Evaluation Module PCM2706EVM-U PCM2706EVM-U Ficha De Dados
Códigos do produto
PCM2706EVM-U
SBFS036A – AUGUST 2011 – REVISED JULY 2012
External ROM Example
External ROM data (sample set)
0xBB, 0x08, 0x04, 0x27,
0x50, 0x72, 0x6F, 0x64, 0x75, 0x63, 0x74, 0x20, 0x73, 0x74, 0x72, 0x69, 0x6E, 0x67, 0x73, 0x2E,
0x56, 0x65, 0x6E, 0x64, 0x6F, 0x72, 0x20, 0x73, 0x74, 0x72, 0x69, 0x6E, 0x67, 0x73, 0x20, 0x61,
0x72, 0x65, 0x20, 0x70, 0x6C, 0x61, 0x63, 0x65, 0x64, 0x20, 0x68, 0x65, 0x72, 0x65, 0x2E, 0x20,
0x80,
0x7D,
0x0A, 0x93, 0x01
0x50, 0x72, 0x6F, 0x64, 0x75, 0x63, 0x74, 0x20, 0x73, 0x74, 0x72, 0x69, 0x6E, 0x67, 0x73, 0x2E,
0x56, 0x65, 0x6E, 0x64, 0x6F, 0x72, 0x20, 0x73, 0x74, 0x72, 0x69, 0x6E, 0x67, 0x73, 0x20, 0x61,
0x72, 0x65, 0x20, 0x70, 0x6C, 0x61, 0x63, 0x65, 0x64, 0x20, 0x68, 0x65, 0x72, 0x65, 0x2E, 0x20,
0x80,
0x7D,
0x0A, 0x93, 0x01
Explanation
Data are stored beginning at address 0x00.
Vendor ID: 0x08BB
Product ID: 0x2704
Product string: Product strings (16 bytes).
Vendor string: Vendor strings are placed here (32 bytes, 31 visible characters are followed by 1 space).
Power attribute (bmAttribute): 0x80 (Bus-powered).
Max power (maxPower): 0x7D (250 mA).
Auxiliary HID usage ID: 0x0A, 0x93, 0x01 (AL A/V capture).
Note that the data bits must be sent from LSB to MSB on the I
2
C bus. Therefore, each data byte must be stored
with its bits in reverse order.
Copyright © 2011–2012, Texas Instruments Incorporated
25
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