Hitachi HTS541680J9AT00 Specifications - Page 43
PIO timings
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7.7 Travelstar 5K160 (PATA) Hard Disk Drive Specification PIO timings The PIO cycle timings meet Mode 4 of the ATA/ATAPI-6 description. CS(1:0)DA(2:0) t1 DIOR-, DIOW- Write data DD(15:0) Read data DD(15:0) t9 t0 t2 t2i t3 t4 t5 t6 t6z IORDY tRD tA tB 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 Figure 5. PIO cycle timings MIN (ns) 120 25 70 25 20 10 20 5 - 10 0 - - MAX. (ns 30 - - 35 1,250 43/188
Travelstar 5K160 (PATA) Hard Disk Drive Specification
43
/
188
7.7
PIO timings
The PIO cycle timings meet Mode 4 of the ATA/ATAPI-6 description.
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
Figure 5. PIO cycle timings
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
tRD
tA
t6