Device Pausing Write Dma; Figure 43. Ultra Dma Cycle Timings (Device Pausing Write) - IBM DJSA-210 - Travelstar 10 GB Hard Drive Specifications

7.9.4

Device Pausing Write DMA

DMARQ
DMACK-
STOP
DDMARDY-
HSTROBE
PARAMETER DESCRIPTION
tSR HSTROBE to DDMARDY- time
tRFS DDMARDY- to final HSTROBE time
Note: When a device does not satisfy the tSR timing, the device is ready to receive two more data words
after DDMARDY- is negated.

Figure 43. Ultra DMA cycle timings (Device Pausing Write)

tSR
Travelstar 32GH/30GT/20GN hard disk drive specifications
tRFS
MODE 0 MODE 1
MIN MAX MIN MAX
(ns) (ns) (ns)
– 50 –
– 75 –
54
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