Host Terminating Read Dma; Table 23: Ultra Dma Cycle Timing Chart (Host Pausing Read); Table 24: Ultra Dma Cycle Timings (Host Pausing Read) - Hitachi HDT725025VLA380 - Deskstar 0A33423 T7K500 250GB SATA 7200RPM 8MB Cache Hard Drive Specifications

6.9.3 Host Terminating Read DMA

Table 23: Ultra DMA cycle timing chart (Host pausing Read)

DMARQ
DMACK-
STOP
HDMARDY-
DSTROBE
DD(15:0)

Table 24: Ultra DMA cycle timings (Host pausing Read)

PARAMETER DESCRIP-
TION
(all values in ns)
tRFS HDMARDY- to final
DSTROBE time
tRP Ready to pause time
tLI Limited interlock time
tAZ Maximum time allowed for
output drivers to release
tZAH Minimum delay time
required for output
tMLI Interlock time with minimum
tCS CRC word setup time at
device
tCH CRC word hold time at
device
tACK Hold time for DMACK-
tIO- Maximum time before
RDYZ releasing IORDY
tLI
tRP
tRFS
tLI
xxx RD Data xxxxxxxxxxxxxxxxxx
Device drives DD
MODE 0 MODE 1
MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX
– 75 – 70
160 – 125 –
0 150 0 150
– 10 – 10
20 – 20 –
20 – 20 –
15 – 10 –
5 – 5 –
20 – 20 –
– 20 – 20
Deskstar T7K500 Hard Disk Drive Specification
tMLI
tIORDYZ
tAZ
xxx
tZAH
MODE 2 MODE 3
– 60 – 60
100 – 100 –
0 150 0 100
– 10 – 10
20 – 20 –
20 – 20 –
7 – 7 –
5 – 5 –
20 – 20 –
– 20 – 20
34
tACK
tACK
tCH
tCS
CRC xxxxxxxxxxx
Host drives DD
MODE 4 MODE 5
– 60 – 50
100 – 85 –
0 100 0 75
– 10 – 10
20 – 20 –
20 – 20 –
5 – 5 –
5 – 5 –
20 – 20 –
– 20 – 20
MODE 6
– 50
85 –
0 60
– 10
20 –
20 –
5 –
5 –
20 –
– 20