Hitachi HTS542525K9SA00 - Host Terminating Read DMA; Table 23: Ultra DMA Cycle Timing Chart (Host Pausing Read); Table 24: Ultra DMA Cycle Timings (Host Pausing Read)

Deskstar 7K160 Hard Disk Drive Specification
34
6.9.3 Host Terminating Read DMA
Table 23: Ultra DMA cycle timing chart (Host pausing Read)
Table 24: Ultra DMA cycle timings (Host pausing Read)
PARAMETER DESCRIP-
TION
(all values in ns)
MODE 0 MODE 1 MODE 2 MODE 3 MODE 4 MODE 5 MODE 6
MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX
tRFS HDMARDY- to final
DSTROBE time
–75–70–60–60–60–50–50
tRP Ready to pause time 160 – 125 – 100 – 100 – 100 – 85 – 85 –
tLI Limited interlock time 0 150 0 150 0 150 0 100 0 100 0 75 0 60
tAZ Maximum time allowed for
output drivers to release
–10–10–10–10–10–10–10
tZAH Minimum delay time
required for output
20–20–20–20–20–20–20–
tMLIInterlock time with minimum20–20–20–20–20–20–20–
tCS CRC word setup time at
device
15–10–7–7–5–5–5–
tCH CRC word hold time at
device
5–5–5–5–5–5–5–
tACKHold time for DMACK- 20–20–20–20–20–20–20–
tIO-
RDYZ
Maximum time before
releasing IORDY
–20–20–20–20–20–20–20
DSTROBE
HDMARDY-
DMACK-
DMARQ
STOP
tMLI
tRP
DD(15:0)
tZAH
xxxxxxxxxxxxxxxxxx
xxx
Device drives DD
Host drives DD
tCH
tCS
CRC
tACK
tACK
tRFS
tLI tIORDYZ
xxx RD Data xxxxxxxxxxx
tAZ
tLI