參數(shù)資料
型號: S5L9276X01
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
元件分類: 通用總線功能
英文描述: OPTICAL CD MP3 SYSTEM
中文描述: 光學(xué)CD MP3播放系統(tǒng)
文件頁數(shù): 32/50頁
文件大?。?/td> 182K
代理商: S5L9276X01
S5L9276 (PRELIMINARY SPEC)
OPTICAL CD MP3 SYSTEM
32
CDFS Table Read
S5L9276X decodes File Allocation Table of CD-ROM and stores it to DRAM. Micom can access DRAM to read the
CDFS Table using register read protocol.
Setting DRAM Refresh Rate
Micom can change DRAM refresh rate by change a code in the H_REFRESH_INTERVAL register as following :
H_REFRESH_INTERVAL(8'ha2) VALUE
Maximum Refresh Interval
8'bxxxxxx00
624 cycles
8'bxxxxxx01
608 cycles
8'bxxxxxx10
576 cycles
8'bxxxxxx11
480 cycles
Configuration of DRAM Memory Map
When S5L9276 is reset the DRAM is configured to the default memory map as shown below.
H_IB_START
H_IB_END
H_OBL_START
H_CD_START
H_CD_END
H_OBL_END
H_OBR_START
H_OBR_END
0x00000
0x01000
0xF34FF
0xF3500
0xF4B7F
0xF4B80
0xF61FF
0xF6200
0xFFFFF
0x00DB6
CD-ROM Decoder
Working Buffer
Not Used
Input Buffer
Output Buffer
L-CH
Output Buffer
R-CH
Reserved
H_IB_START
H_IB_END
H_OBL_START
H_CD_START
H_CD_END
H_OBL_END
H_OBR_START
H_OBR_END
0x00000
0x01000
0x19FFF
0x1A000
0x280FF
0x28100
0x361FF
0x36200
0x3FFFF
0x00DB6
CD-ROM Decoder
Working Buffer
Not Used
Input Buffer
Output Buffer
L-CH
Output Buffer
R-CH
Reserved
<4Mbit DRAM>
<16Mbit DRAM>
Figure 10.
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