Hitachi 7K400 Specifications - Page 46
PIO timings
![]() |
UPC - 000053412935
View all Hitachi 7K400 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 46 highlights
6.6 PIO timings The PIO cycle timings meet Mode 4 of the ATA/ATAPI-6 description. Table 23: PIO cycle timings chart CS(1:0)DA(2:0) t1 DIOR-, DIOW - W rite data DD(15:0) t9 t0 t2 t2i t3 t4 Read data DD(15:0) IOCS16-(*) t7(*) t5 t6 t6z t8(*) tRD IORDY tA tB (*) Up to ATA-2 (mode-0,1,2) 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 t9 DIOR-/DIOW- to address valid hold tA IORDY setup width tB IORDY pulse width MIN (ns) 120 25 70 25 20 10 20 5 10 - - MAX (ns 35 1250 6.6.1 Write DRQ interval time For write sectors and write multiple operations 3.8 ms is inserted from the end of negation of the DRQ bit until setting of the next DRQ bit. Deskstar 7K400 Hard Disk Drive Specification 32
![](/manual_guide/products/hitachi-7k400-specifications-548f643/46.png)