7.9.3 Host Terminating Write DMA
HSTROBE
DDMARDY-
DMACK-
DMARQ
STOP
tMLI
DD(15:0)
Host drives DD
tDH
tDS
CRC
tSS
tACK
tACK
tLI
tIORDYZ
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxx
tLI
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
10001000150015001500Limited interlock timetLI
–50–50–50–50–50Time from HSTROBE edge to assertion of
STOP
tSS
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 45. Ultra DMA cycle timings (Host Terminating Write)
Travelstar 32GH/30GT/20GN hard disk drive specifications
56