Datasheet

Travelstar 80GN Hard Disk Drive Specification

7.8 Multi word DMA timings

The Multi word DMA timings meet Mode 2 of the ATA/ATAPI-6 description.

Table 27: Multiword DMA cycle timings

PARAMETER DESCRIPTION MIN (ns) MAX (ns)

t0 Cycle time 120 –

tD DIOR-/DIOW- asserted pulse width 70 –

tE DIOR- data access – 50

tF DIOR- data hold 5 –

tG DIOR-/DIOW- data setup 20 –

tH DIOW- data hold 10 –

tI DMACK- to DIOR-/DIOW- setup 0 –

tJ DIOR-/DIOW- to DMACK- hold 5 –

tKR/tKW DIOR- negated pulse width / DIOW- negated pulse width 25 –

tLR/tLW DIOR- to DMARQ delay / DIOW- to DMARQ delay – 35

tZ DMACK- to read data released – 25

WRITE DD(15:0)

READ DD(15:0)

DMACK-

DMARQ

DIOR-/DIOW-

tLR/tLW

tKR/tKW