SC9641 Silan, SC9641 Datasheet - Page 11

• Manufacturer Part Number: SC9641
• Description: CD Digital Signal Processor
• Manufacturer: Silan

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3.
Note:
and 8 bits verify code.
COMMAND not set value, then the DATA after COMMAND is invalid, but the DATA cannot omit. COMMAND
and DATA send code from MSB to LSB. SC9641 operation according the master controller command and it is
single initiative communication.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
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The interface protocol adopt fixed communication format. Every frame includes 24 bits, where 16 bits data code,
COMMAND (8bits) + CHECK(4bits) + DATA(8bits) + CHECK(4bits)
4 bits verify code is obtained from high 4 bits XOR low 4 bits of the former 8 bits code.
The 8 bits DATA code is the master controller send to SC9641, or the SC9641 request read code. If the
CPU INTERFACE TIMING
REV:1.0
Page 11 of 15
SC9641
2008.03.24