IBM IC25N040ATCS04 - Travelstar 40 GB Hard Drive - 7.7 PIO Timings

7.7 PIO timings
The PIO cycle timings meet Mode 4 of the ATA-5 description.
IOCS16-(*)
t9
t0
t2
t2i
t3 t4
t5
t8(*)
t7(*)
t1
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)
t6z
tRD
tA
t6
1,250–IORDY pulse widthtB
35–IORDY setup widthtA
–0Read data valid to IORDY activetRD
–10DIOR-/DIOW- to address valid holdt9
30–Address valid to IOCS16- releasedt8(*)
40–Address valid to IOCS16- assertiont7(*)
30–DIOR- data tristatet6z
–5DIOR- data holdt6
–20DIOR- data setupt5
–10DIOW- data holdt4
–20DIOW- data setupt3
–25DIOR-/DIOW- recovery timet2i
–70DIOR-/DIOW- pulse widtht2
–25Address valid to DIOR-/DIOW- setupt1
–120Cycle timet0
MAX. (ns)MIN (ns)PARAMETER DESCRIPTION
Figure 38. PIO cycle timings
Travelstar 60GH & 40GN hard disk drive specifications
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