Hitachi HDS725050KLA360 - Device Terminating Read DMA; Table 31. Ultra DMA Cycle Timing Chart (Device Terminating Read); Table 32. Ultra DMA Cycle Timings (Device Terminating Read)

Deskstar 7K500 and Deskstar E7K500 Hard Disk Drive Specification
38
6.8.4 Device Terminating Read DMA
Table 31: Ultra DMA cycle timing chart (Device terminating Read)
Table 32: Ultra DMA cycle timings (Device Terminating Read)
PARAMETER DESCRIPTION
(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
tSS Time from DSTROBE edge to nega-
tion of DMARQ
50–50–50–50–50–50–50--
tLI Limited interlock time 0 150 0 150 0 150 0 100 0 75 0 60 0 60
tAZ Maximum time allowed for output driv-
ers to release
–10–10–10–10–10–10--10
tZAH Maximum delay time required for out-
put
20–20–20–20–20–20–20--
tMLI Interlock time with minimum 20–20–20–20–20–20–20--
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--
tACK Hold time for DMACK- 20–20–20–20–20–20–20--
tIORDYZ Maximum time before releasing
IORDY
–20–20–20–20–20–20--20
DSTROBE
HDMARDY-
DMACK-
DMARQ
STOP
tMLI
DD(15:0)
tZAH
xxxxxxxxxxxxxxxxxx
Device drives DD
Host drives DD
tCH
tCS
CRC
tACK
tACK
tLI
tIORDYZ
xxxxxx xxxxxxxxxx
tSS
tLI
tLI
tAZ