S5L9274 데이터 시트보기 (PDF) - Samsung

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S5L9274

DECODER FOR CD-MP3/CD-ROM

Samsung 

DECODER FOR CD-MP3/CD-ROM

S5L9274

// Write only registers (8'h90  8'hAF reserved for memUnit - Write)

H_CD_START_H 8'h90

H_CD_START_L 8'h91

H_CD_END_H

8'h92

H_CD_END_L

8'h93

H_IB_START_H

8'h94

H_IB_START_M

8'h95

H_IB_START_L

8'h96

H_IB_END_H

8'h97

H_IB_END_M

8'h98

H_IB_END_L

8'h99

H_OBL_START_H 8'h9a

H_OBL_START_M 8'h9b

H_OBL_START_L 8'h9c

H_OBL_END_H

8'h9d

H_OBL_END_M

8'h9e

H_OBL_END_L

8'h9f

H_OBR_START_H 8'ha0

H_OBR_START_M 8'ha1

H_OBR_START_L 8'ha2

H_OBR_END_H

8'ha3

H_OBR_END_M

8'ha4

H_OBR_END_L

8'ha5

H_REFRESH_INTERVAL

8'ha6

DRAM refresh interval rate

bit1:0

00:

624 cycles

01:

608 cycles

10:

576 cycles

11:

480 cycles

H_DRAMIF_NOE 8'ha7

DRAM Interface Output Enable Control Register

bit7 : DRAM Interface Outputs Enable (Active Low.)

bit6  0 : don't care

H_FRAME_NO

8'ha8

The frames as many as specified in this H_FRAME_NO register are

dumped into DRAM after every 0x91 is written in the OPSR. OPSR

value will be changed to 90 automatically after completion of dump. The

maximum value allowed for the H_FRAME_NO is IBsize/1024.

H_SHOCK

8'ha9

When Micom detects shock, it sets this register with the value of

"xxxxxxx1". This causes to stop dump operation and deletes frames as

many as specified in the H_RETURN_SECTOR register from the Input

Buffer. When there's no shock, Micom sets H_SHOCK register with the

value of "xxxxxxx0".

H_IB_WR_OFFSET 8'haa

Input Buffer is in LOW state when the condition below is met :

" Input Buffer Vacancy is equal to or less than (Size of Input Buffer - the

value in the H_IB_WR_OFFSET) "

H_RETURN_SECTOR 8'hab

When occurred shock, before detect shock, data cause to dump in dram.

It set deletes frames as may as specified from the shock.

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