Hitachi P7K500 Specifications - Page 37

HITACHI Deskstar & CinemaStar P7K500 Hard Disk Drive specification (Rev 1.1)

29

5.2.4.4

Device Terminating Read DMA

DSTROBE

HDMARDY-

DMACK-

DMARQ

STOP

tMLI

tLI

DD(15:00)

tZAH

xxxxxxxxxxxxxxxxxx

Device drives DD

Host drives DD

tCH

tCS

CRC

tSS

tACK

tACK

tLI

tIORDYZ

xxxxx

xxxxxxxxxx

tAZ

tLI

Figure 12

Ultra DMA cycle timing chart (Device terminating Read)

MODE0

MODE1

MODE2

MODE3

MODE4

MODE5

MODE6

PARAMETER

DESCRIPTION

(all values in ns)

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

tSS

Time from DSTROBE

edge to negation of

DMARQ

50

–

50

–

50

–

50

–

50

–

50

–

50

–

tLI

Limited interlock time

0

150

0

150

0

150

0

100

0

100

0

75

0

60

tAZ

Maximum time allowed

for output drivers to

release

–

10

–

10

–

10

–

10

–

10

–

10

–

10

tZAH

Minimum delay time

required for output

20

–

20

–

20

–

20

–

20

–

20

–

20

–

tMLI

Interlock time with

minimum

20

–

20

–

20

–

20

–

20

–

20

–

20

–

tCS

CRC word setup time

(at device side)

15

–

10

–

7

–

7

–

5

–

5

–

5

–

tCH

CRC word hold time (at

device side)

5

–

5

–

5

–

5

–

5

–

5

–

5

–

tACK

Hold time after

DMACK–

20

–

20

–

20

–

20

–

20

–

20

–

20

–

tIORDYZ

Maximum time before

releasing IORDY

–

20

–

20

–

20

–

20

–

20

–

20

–

20

Table 21

Ultra DMA cycle timings (Device Terminating Read)

Hitachi P7K500 Specifications - Page 37

Hitachi P7K500 - Deskstar - Hard Drive Manual

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