Hitachi HTS548020M9AT00, Specifications

Page: 62 / 213

Travelstar 5K80 Hard Disk Drive Specification
46
7.9.4 Device Terminating Read DMA
Table 31: Ultra DMA cycle timings (Device Terminating Read)
PARAMETER
DESCRIPTION
MODE 0 MODE 1 MODE 2 MODE 3 MODE 4 MODE 5
MIN
(ns) MAX
(ns)
MIN
(ns) MAX
(ns)
MIN
(ns) MAX
(ns)
MIN
(ns) MAX
(ns)
MIN
(ns) MAX
(ns)
MIN
(ns) MAX
(ns)
tSS Time from DSTROBE
edge to negation of
DMARQ
50 – 50 – 50 – 50 – 50 – 50 –
tLI Limited interlock time 0 150 0 150 0 150 0 100 0 100 0 75
tAZ Maximum time allowed for
output drivers to release
– 10 – 10 – 10 – 10 – 10 – 10
tZAH Maximum delay time
required for output
20 – 20 – 20 – 20 – 20 – 20 –
tMLI Interlock time with mini-
mum
20 – 20 – 20 – 20 – 20 – 20 –
tDS CRC word setup time at
device
15 – 10 – 7 – 7 – 5 – 4 –
tDH CRC word hold time at
device
5 – 5 – 5 – 5 – 5 – 4.6 –
tACK Hold time for DMACK-
negation
20 – 20 – 20 – 20 – 20 – – –
tIORDYZ Maximum time before
releasing IORDY
– 20 – 20 – 20 – 20 – 20 – 20
DSTROBE
HDMARDY-
DMACK-
DMARQ
STOP
tMLI
DD(15:0)
tZAH
xxxxxxxxxxxxxxxxxx
Device drives DD
Host drives DD
tDH
tDS
CRC
tACK
tACK
tLI
tIORDYZ
xxxxx xxxxxxxxxx
tSS
tLI
tLI
tAZ