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S5L9274 Datasheet(PDF) 10 Page - Samsung semiconductor |
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S5L9274 Datasheet(HTML) 10 Page - Samsung semiconductor |
10 / 36 page S5L9274 DECODER FOR CD-MP3/CD-ROM 10 OPERATION DESCRIPTION IO TIMING SPECIFICATION MCU Interface MCK MLT MDAT Read address Read data Register read protocol D8 D7 D6 D5 D4 D3 D2 D1 C1 C8 C7 C6 C5 C4 C3 C2 MDOUT MCK MLT MDAT Write address Write data Register write protocol D1 D2 D3 D4 D5 D6 D7 D8 C1 C8 C7 C6 C5 C4 C3 C2 MCK MLT MDAT Memory read command (8'h50) Read MEM data Memory read protocol C1 C8 C7 C6 C5 C4 C3 C2 MDOUT BL * 16 Description for the memory read protocol 1. Write Start Address to H_MEM_ADDR_HIGH (8'hf0), H_MEM_ADDR_MID (8'hf1), and _MEM_ADDR_LOW (8'hf2). 2. Write BL(Burst Length) to H_MEM_ADDR_BL (8'hf3). The BL is programmable between and 63. The default value of the H_MEM_ADDR_BL when reset is 1. 3. Send command 8'h50 (i.e. Transfer address of the H_MEM_READ). 4. Read MDOUT as many bits as the " BL*16 ". (16bits per 1 burst, each burst is MSB first.) |
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