Host Pausing Read Dma; Table 29: Ultra Dma Cycle Timings (Host Pausing Read) - Hitachi HTS548040M9AT00 Specifications

7.9.2 Host Pausing Read DMA

DMARQ
DMACK-
STOP
HDMARDY-
DSTROBE

Table 29: Ultra DMA cycle timings (Host Pausing Read)

PARAMETER
DESCRIPTION
DSTROBE to
tSR
HDMARDY- time
HDMARDY- to final
tRFS
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 - is negated.
tSR
tRFS
MODE 0 MODE 1
MIN MAX MIN MAX
(ns) (ns) (ns) (ns)
– 50 – 30
– 75 – 70
Travelstar 5K80 Hard Disk Drive Specification
44
MODE 2 MODE 3
MIN MAX MIN MAX
(ns) (ns) (ns) (ns)
– 20 – –
– 60 – 60
MODE 4 MODE 5
MIN MAX MIN MAX
(ns) (ns) (ns) (ns)
– – – –
– 60 – 50