IBM DJSA-210 - Travelstar 10 GB Hard Drive - Host Terminating Read DMA; Figure 40. Ultra DMA Cycle Timing (Host Terminating Read)

7.9.1
Host Terminating Read DMA
DSTROBE
HDMARDY-
DMACK-
DMARQ
STOP
tMLI
tRP
DD(15:0)
tZAH
xxxxxxxxxxxxxxxxxx
xxx
Device drives DD
Host drives DD
tDH
tDS
CRC
tACK
tACK
tRFS
tLI tIORDYZ
xxx RD Data xxxxxxxxxxx
tAZ
tLI
20–20–20–20–20–Maximum time before releasing IORDYtIORDYZ
–20–20–20–20–20Hold time for DMACK-tACK
–5–5–5–5–5CRC word hold time at devicetDH
–5–7–7–10–15CRC word setup time at devicetDS
–20–20–20–20–20Interlock time with minimumtMLI
–20–20–20–20–20Minimum delay time required for outputtZAH
10–10–10–10–10–Maximum time allowed for output drivers
to release
tAZ
10001000150015001500Limited interlock timetLI
–100–100–100–125–160Ready to pause timetRP
60–60–60–70–75–HDMARDY- to final DSTROBE timetRFS
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MODE 4MODE 3MODE 2MODE 1MODE 0
PARAMETER DESCRIPTION
Figure 40. Ultra DMA cycle timing (Host Terminating Read)
Travelstar 32GH/30GT/20GN hard disk drive specifications
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