Host Pausing Read Dma; Figure 39. Ultra Dma Cycle Timings (Host Pausing Read) - IBM DJSA-210 - Travelstar 10 GB Hard Drive Specifications

7.9.2

Host Pausing Read DMA

DMARQ
DMACK-
STOP
HDMARDY-
DSTROBE
PARAMETER DESCRIPTION
tSR DSTROBE to HDMARDY- time
tRFS HDMARDY- to final DSTROBE time
Note: When a host does not satisfy the tSR timing, the host should be ready to receive two more data
words after HDMARDY-.

Figure 39. Ultra DMA cycle timings (Host Pausing Read)

tSR
Travelstar 32GH/30GT/20GN hard disk drive specifications
tRFS
MODE 0 MODE 1
MIN MAX MIN MAX
(ns) (ns) (ns)
– 50 –
– 75 –
50
MODE 2 MODE 3
MIN MAX MIN MAX
(ns) (ns) (ns) (ns) (ns)
30 – 20 – –
70 – 60 – 60
MODE 4
MIN MAX
(ns) (ns)
– –
– 60