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參數(shù)資料
| 型號： | SAA7382GP |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Error correction and host interface IC for CD-ROM ELM |
| 中文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, PQFP80 |
| 封裝： | PLASTIC, QFP-80 |
| 文件頁數(shù)： | 21/60頁 |
| 文件大小： | 226K |
| 代理商： | SAA7382GP |
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1996 Apr 25
21
Philips Semiconductors
Preliminary specification
Error correction and host interface IC for
CD-ROM (ELM)
SAA7382
Table 17
HSEL bits
7.7.19
SUB_L, SUB_H
This 10-bit register specifies the memory address of the subcode data block. This address will always be in the first
1 kbyte of memory.
7.7.20
INCNF
This register is used to specify the configuration of the input data path.
Table 18
INCNF register bits
Note
1.
For subcode Q-to-W recovery, the BCK clock is used as a timing reference. It is possible to recover the Q-to-W
subcode using the SAA7382, while at the same time the serial interface is programmed in oversampling mode for a
DAC. Under such circumstances, it is necessary to tell the SAA7382 the oversampling factor.
HSEL CONTENT
SELECTED HOST
INTERFACE
DESCRIPTION
BIT 2
BIT 1
BIT 0
0
0
0
0
0
0
1
1
0
1
0
1
Sanyo
ATAPI
Oak
Sanyo compatible mode
ATAPI Mode
Oak compatible mode
all host bus pins 3-state, default after h/w reset
for future enhancements
unknown host
reserved
others
BIT
NAME
DESCRIPTION
7
6
IISmode
div1
(1)
I
2
S-bus mode = 0; EIAJ serial interface mode = 1.
If div1 and div0 = logic 0 then no oversampling (normal CDROM modes); If div1 = logic 0
and div0 = logic 1 then 2 times oversampling; If div1 = logic 1 and div0 = logic 0 then
4 times oversampling.
If div1 and div0 = logic 0 then no oversampling (normal CDROM modes); If div0 = logic 1
and div1 = logic 0 then 2 times oversampling; If div1 = logic 0 and div1 = logic 0 then
4 times oversampling.
Selection of Q-to-W input format. Logic 0 = V4 mode; logic 1 = EIAJ mode.
Q-to-W interface enable. Logic 0 = off; logic 1 = on.
Q-to-W interface cooking enable. Logic 0 = cooked mode; logic 1 = RAW mode.
External RAM test mode. Logic 0 = normal operation; logic 1 = RAM test mode.
5
div0
(1)
4
3
2
1
0
QWmode
QWon
QWcook
RAMtest
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