6.2.2 PIO timings
The PIO cycle timings meet Mode 4 of the ATA/ATAPI-6 description.
IOCS16-(*)
t1
t9
t0
t2
t2i
t3
t4
t5
t6
t8(*)
t7(*)
t1
tA
tB
Read data
DD(15:0)
DIOR-,
DIOW-
CS(1:0)
DA(2:0)
Write data
DD(15:0)
IORDY
(*) Up to ATA-2 (mode-0,1,2)
Figure 23. PIO cycle timings chart
1250
–
IORDY pulse width
tB
35
–
IORDY set up time
tA
-
10
DIOR–/DIOW– to address valid hold
t9
30
–
Address invalid to IOCS16– negation
t8(*)
40
–
Address valid to IOCS16– assertion
t7(*)
–
5
DIOR– data hold
t6
–
20
DIOR– data setup
t5
–
10
DIOW– data hold
t4
–
20
DIOW– data setup
t3
–
25
DIOR–/DIOW– recovery time
t2i
–
70
DIOR–/DIOW– pulse width
t2
–
25
Address valid to DIOR-/DIOW– setup
t1
–
120
Cycle time
t0
MAX (ns)
MIN (ns)
PARAMETER DESCRIPTION
Figure 24. PIO cycle timings
Deskstar 120GXP hard disk drive specifications
27
Summary of Contents for IC35L040AVVN07-0 - 40GB IDE Deskstar 120GXP 7200RPM UATA-100...
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