Device Terminating Read Dma; Table 32: Ultra Dma Cycle Timings (Device Terminating Read) - Hitachi 5K100 - Travelstar - Hard Drive Specifications

7.9.4 Device Terminating Read DMA

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

Table 32: Ultra DMA cycle timings (Device Terminating Read)

PARAMETER
DESCRIPTION
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 mini-
mum
tDS CRC word setup time at
device
tDH CRC word hold time at
device
tACK Hold time for DMACK-
negation
tIORDYZ Maximum time before
releasing IORDY
tSS
tLI
tLI
tAZ
xxxxx
tZAH
Device drives DD
MODE 0
MIN MAX
(ns) (ns)
50 –
0 150
– 10
20 –
20 –
15 –
5 –
20 –
– 20
Travelstar 5K100 Hard Disk Drive Specification
tMLI
tIORDYZ
tLI
xxxxxxxxxxxxxxxxxx
Host drives DD
MODE 1 MODE 2
MIN MAX MIN MAX
(ns) (ns) (ns) (ns)
50 – 50 –
0 150 0 150
– 10 – 10
20 – 20 –
20 – 20 –
10 – 7 –
5 – 5 –
20 – 20 –
– 20 – 20
50
tACK
tACK
tDH
tDS
xxxxxxxxxx
CRC
MODE 3 MODE 4
MIN MAX MIN MAX
(ns) (ns) (ns) (ns)
50 – 50 –
0 100 0 100
– 10 – 10
20 – 20 –
20 – 20 –
7 – 5 –
5 – 5 –
20 – 20 –
– 20 – 20
MODE 5
MIN MAX
(ns) (ns)
50 –
0 75
– 10
20 –
20 –
4 –
4.6 –
– –
– 20