Device Terminating Read Dma; Table 25: Ultra Dma Cycle Timing Chart (Host Pausing Read); Table 26: Ultra Dma Cycle Timings (Device Terminating Read) - Hitachi HTS542525K9SA00 Specifications

6.9.4 Device Terminating Read DMA

Table 25: Ultra DMA cycle timing chart (Host pausing Read)

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

Table 26: Ultra DMA cycle timings (Device Terminating Read)

PARAMETER DESCRIP-
TION
(all values in ns)
tSS Time from DSTROBE edge
to negation of DMARQ
tLI Limited interlock time
tAZ Maximum time allowed for
output drivers to release
tZAH Maximum 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-
tIORDYZ Maximum time before
releasing IORDY
tSS
tLI
tLI
tAZ
xxxxxx
tZAH
MODE 0 MODE 1
MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX
50 – 50
0 150 0 150
– 10 – 10
20 – 20
20 – 20
15 – 10
5 – 5
20 – 20
– 20 – 20
Deskstar 7K160 Hard Disk Drive Specification
tMLI
tIORDYZ
tLI
xxxxxxxxxxxxxxxxxx
Host drives DD
MODE 2 MODE 3
– 50 – 50 –
0 150 0 100
– 10 – 10
– 20 – 20 –
– 20 – 20 –
– 7 – 7 –
– 5 – 5 –
– 20 – 20 –
– 20 – 20
35
tACK
tACK
tCH
tCS
xxxxxxxxxx
CRC
MODE 4 MODE 5
50 – 50 –
0 100 0 75
– 10 – 10
20 – 20 –
20 – 20 –
5 – 5 –
5 – 5 –
20 – 20 –
– 20 – 20
MODE 6
50 –
0 60
– 10
20 –
20 –
5 –
5 –
20 –
– 20