OPTICAL CD MP3 SYSTEM
S5L9276 (PRELIMINARY SPEC)
Description for the memory read protocol
1. Write Start Address to H_MEM_ADDR_HIGH (8'hf0), H_MEM_ADDR_MID (8'hf1), and H_MEM_ADDR_LOW
(8'hf2).
2. Write BL(Burst Length) to H_MEM_ADDR_BL (8'hf3). The BL is programmable between 1 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.)
Description for the memory write protocol
1. Write Start Address to H_MEM_ADDR_HIGH (8'hf0), H_MEM_ADDR_MID (8'hf1), and H_MEM_ADDR_LOW
(8'hf2).
2. Write BL(Burst Length)and memory write command to H_MEM_WRITE (8'hf4). The BL is programmable
between 1 and 63.
3. Write MDAT as many bits as the " BL*16 ". (16bits per 1 burst, each burst is MSB first.)
Description for the input buffer write protocol
1. Write BL(Burst Length)and input buffer write command to H_MEM_WRITE_IB (8'hf5). The BL is programmable
between 1 and 63.
2. Write MDAT as many bits as the " BL*16 ". (16bits per 1 burst, each burst is MSB first.)
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