Hitachi IC25N080ATMR04-0 Specifications - Page 55
PIO timings
UPC - 000000114196
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7.7 PIO timings The PIO cycle timings meet Mode 4 of the ATA/ATAPI-6 description. C S (1 :0 )D A (2 :0 ) D IO R -, DIOW - W rite data D D (1 5 :0 ) Read data D D (1 5 :0 ) t1 t7(*) t9 t0 t2 t2i t3 t4 t5 t6 t6z t8(*) IO RDY tA tB Table 26: PIO cycle timings PARAMETER DESCRIPTION t0 Cycle time t1 Address valid to DIOR-/DIOW- setup t2 DIOR-/DIOW- pulse width t2i DIOR-/DIOW- recovery time t3 DIOW- data setup t4 DIOW- data hold t5 DIOR- data setup t6 DIOR- data hold t6z DIOR- data tristate t9 DIOR-/DIOW- to address valid hold tRD Read data valid to IORDY active tA IORDY setup width tB IORDY pulse width MIN (ns) 120 25 70 25 20 10 20 5 - 10 0 - - MAX (ns 30 - - 35 1,250 Travelstar 80GN Hard Disk Drive Specification 45
Travelstar 80GN Hard Disk Drive Specification
45
7.7
PIO timings
The PIO cycle timings meet Mode 4 of the ATA/ATAPI-6 description.
Table 26: PIO cycle timings
PARAMETER DESCRIPTION
MIN (ns)
MAX (ns)
t0
Cycle time
120
–
t1
Address valid to DIOR-/DIOW- setup
25
–
t2
DIOR-/DIOW- pulse width
70
–
t2i
DIOR-/DIOW- recovery time
25
–
t3
DIOW- data setup
20
–
t4
DIOW- data hold
10
–
t5
DIOR- data setup
20
–
t6
DIOR- data hold
5
–
t6z
DIOR- data tristate
–
30
t9
DIOR-/DIOW- to address valid hold
10
–
tRD
Read data valid to IORDY active
0
–
tA
IORDY setup width
–
35
tB
IORDY pulse width
–
1,250
t9
t0
t2
t2i
t3
t4
t5
t1
tB
Read data
DD(15:0)
DIOR-,
DIOW-
CS(1:0)-
DA(2:0)
Write data
DD(15:0)
IORDY
t6z
tA
t6