參數(shù)資料
型號: SAA7382
廠商: NXP Semiconductors N.V.
英文描述: Error correction and host interface IC for CD-ROM ELM
中文描述: 錯誤更正和主機接口集成電路的CD - ROM榆木
文件頁數(shù): 38/60頁
文件大?。?/td> 226K
代理商: SAA7382
1996 Apr 25
38
Philips Semiconductors
Preliminary specification
Error correction and host interface IC for
CD-ROM (ELM)
SAA7382
Sub-CPU timing;
see Fig.13
t
0
t
1
t
2
t
3
t
4
t
5
syn to first SCL
SCL cycle time
time between bytes
data set-up
data hold
data access
250
500
250
150
0
150
ns
ns
ns
ns
ns
ns
ATAPI host interface timing;
see Fig.14
PIO 8
AND
16-
BIT TRANSFER
t
0
cycle time
33 MHz clock
16 MHz clock
150
240
30
80
100
70
140
30
10
50
10
0
30
30
30
35
1250
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
1
t
2
address to HWR/HRD set-up
HWR/HRD active
33 MHz clock
16 MHz clock
33 MHz clock
16 MHz clock
t
2i
HWR/HRD inactive
t
3
t
4
t
5
t
6
t
7
t
8
t
9
t
10
t
11
t
12
S
INGLE
-
WORD
DMA
TRANSFER
; see Fig.15
HWR data set-up
HWR data hold
HRD data set-up
HRD data 3-state
address to IOCS16
address to IOCS16 negate
HWR/HRD to address hold
IORDY set-up
IORDY width
read data valid to IORDY active
only for 16-bit data register
only for 16-bit data register
only if IORDY negated
only if IORDY negated
t
0
cycle time
33 MHz clock
16 MHz clock
240
480
0
120
240
0
35
20
5
80
60
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
1
t
2
t
3
DMACK to DMARQ
DMACK to HWR/HRD
HWR/HRD active
33 MHz clock
16 MHz clock
t
4
t
5
t
6
t
7
t
8
HWR/HRD to DMACK hold
HWR data set-up
HWR data hold
HRD data access
HRD data hold
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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