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SAA7382 Datasheet, PDF (39/60 Pages) NXP Semiconductors – Error correction and host interface IC for CD-ROM ELM
◁
Philips Semiconductors
Error correction and host interface IC for
CD-ROM (ELM)
Preliminary specification
SAA7382
SYMBOL
PARAMETER
CONDITIONS
MULTI-WORD DMA TRANSFER; see Fig.16; note 3
t0
cycle time
t1
HWR/HRD to DMARQ inactive
t2
DMACK to HWR/HRD
t3
HWR/HRD active
t4
HWR/HRD inactive
t5
HWR/HRD to DMACK hold
t6
HWR data set-up
t7
HWR data hold
t8
HRD data access
t9
HRD data hold
t10
DMACK inactive to read data
3-state
Sanyo compatibility mode host interface timing; see Fig.17
COMIN AND SBOUT ACCESS
t0
HEN set-up
t1
HEN hold
t2
CMD set-up
t3
CMD hold
t4
HWR/HRD active
t5
HWR/HRD data inactive
t6
HWR data set-up
t7
HWR data hold
t8
HRD data access
t9
HRD data to 3-state
t10
STEN to HRD
t11
HRD to STEN inactive
t12
HWR to DTEN/STEN inactive
33 MHz clock
16 MHz clock
33 MHz clock
16 MHz clock
only for SBOUT read
for last SBOUT read;
33 MHz clock
16 MHz clock
only for COMIN write when
CMDBK = 0
MIN.
130
−
0
80
50
5
30
15
−
5
−
30
0
15
5
50
75
60
145
50
20
−
5
0
−
−
−
TYP. MAX. UNIT
−
−
ns
−
40
ns
−
−
ns
−
−
ns
−
−
ns
−
−
ns
−
−
ns
−
−
ns
−
60
ns
−
−
ns
−
25
ns
−
−
ns
−
−
ns
−
−
ns
−
−
ns
−
−
ns
−
−
ns
−
−
ns
−
−
ns
−
−
ns
−
−
ns
−
80
ns
−
60
ns
−
−
ns
−
100
ns
−
145
ns
−
100
ns
1996 Apr 25
39
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