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SAA7380 Datasheet, PDF (40/60 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
SAA7380
SYMBOL
PARAMETER
CONDITIONS
WAIT CONTROL DATA TRANSFER; see Fig.18
t0
HEN set-up
t1
HEN hold
t2
CMD set-up
t3
CMD hold
t4
HWR/HRD active
33 MHz clock
16 MHz clock
t5
HWR/HRD inactive
33 MHz clock
16 MHz clock
t6
HWR data set-up
t7
HWR data hold
t8
HRD data access
t9
HRD data to 3-state
t10
HWR/HRD to WAIT active
t11
DTEN to HWR/HRD
t12
HWR/HRD to DTEN inactive
for last data transferred;
33 MHz clock
16 MHz clock
t13
HWR/HRD to EOP
only for last data access
t14
HWR/HRD inactive to EOP inactive only for last data access
DRQ CONTROL DATA TRANSFER; see Fig.19
t0
HEN set-up
t1
HEN hold
t2
CMD set-up
t3
CMD hold
t4
HWR/HRD active
33 MHz clock
16 MHz clock
t5
HWR/HRD data inactive
33 MHz clock
16 MHz clock
t6
HWR data set-up
t7
HWR data hold
t8
HRD data access
t9
HRD data to 3-state
t10
DRQ to HWR/HRD
t11
HWR/HRD to DRQ inactive
t12
DTEN to HWR/HRD
t13
HWR/HRD to DTEN inactive
for last data transferred;
33 MHz clock
16 MHz clock
t14
HWR/HRD to EOP
only for last data access
MIN. TYP. MAX. UNIT
30
−
0
−
15
−
5
−
50
−
75
−
60
−
145
−
50
−
20
−
−
−
5
−
−
−
0
−
−
−
−
−
−
−
−
−
−
ns
−
ns
−
ns
−
ns
−
ns
−
ns
−
ns
−
ns
−
ns
−
ns
80
ns
60
ns
80
ns
−
ns
100
ns
145
ns
120
ns
120
ns
30
−
0
−
15
−
5
−
50
−
75
−
60
−
145
−
50
−
20
−
−
−
5
−
0
−
−
−
0
−
−
−
−
−
−
−
−
ns
−
ns
−
ns
−
ns
−
ns
−
ns
−
ns
−
ns
−
ns
−
ns
80
ns
60
ns
−
ns
80
ns
−
ns
100
ns
145
ns
120
ns
1996 Apr 25
40
 ▷