Multi Word Dma Timings; Table 28. Multiword Dma Cycle Timings - Hitachi 7K100 - Travelstar - Hard Drive Specifications

7.8 Multi word DMA timings

The Multi word DMA timings meet Mode 2 of the ATA-6 description.
DMARQ
DMACK-
DIOR-/DIOW-
READ DD(15:0)
WRITE DD(15:0)
Table 28: Multiword DMA cycle timings
PARAMETER DESCRIPTION
t0 Cycle time
tD DIOR-/DIOW- asserted pulse width
tE DIOR- data access
tF DIOR- data hold
tG DIOR-/DIOW- data setup
tH DIOW- data hold
tI DMACK- to DIOR-/DIOW- setup
tJ DIOR-/DIOW- to DMACK- hold
tKR/tKW DIOR- negated pulse width / DIOW- negated pulse width
tLR/tLW DIOR- to DMARQ delay / DIOW- to DMARQ delay
tZ DMACK- to read data released
tLR/tLW
t0
tI
tD
tG
tG
Travelstar 7K100 Hard Disk Drive Specification
42
tKR/tKW
tF
tH
MIN (ns)
120
tJ
tZ
MAX (ns)
–
70 –
– 50
5 –
20 –
10 –
0 –
5 –
25 –
– 35
– 25