7.9.3 Host Terminating Read DMA. Hitachi IC25N080ATMR04, IC25N040ATMR04-0 - Travelstar 40GB Laptop Hard Drive 9.5mm 2.5 Inch Notebook HDD, IC25N080ATMR04-0 - 3E034 - Dell 80GB Laptop Hard Drive, Travelstar 80GN, IC25N020ATMR04, 08K0910, IC25N040ATMR04, IC25N060ATMR04, IC25N030ATMR04

7.9.3 Host Terminating Read DMA

DMARQ tLI tMLI

DMACKtRP tACK

STOP tACK

HDMARDY-

DSTROBE

DD(15:0) tRFS tLI tIORDYZ xxx RD Data tAZ xxxxxxxxxxxxxxxxxx xxx tCS tCH

CRC xxxxxxxxxxx tZAH

Device drives DD Host drives DD

Table 30: Ultra DMA cycle timings (Host 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) tRFS HDMARDY- to final DSTROBE time

Ready to pause time tRP tLI tAZ tZAH

Limited interlock time

Maximum time allowed for output drivers to release

Minimum delay time required for output

Interlock time with minimum tMLI tCS tCH

CRC word setup time at device

CRC word hold time at device tACK Hold time for DMACKtIORDYZ Maximum time before releasing

IORDY

–

160 –

0 150

–

20

20

15

5

20

–

75

10

–

20

–

–

–

–

–

125 – 100 –

0 150 0 150

100

0

–

100

100

0

–

100

85

0

–

20

20

10

5

20

–

70

10

–

–

–

–

–

20

–

–

20

20

7

5

20

–

60

10

–

–

–

–

–

20

–

–

20

20

7

5

20

–

60

10

–

–

–

–

–

20

–

–

20

20

5

5

20

–

60

10

–

–

–

–

–

20

–

–

20

20

4

4.6

20

–

50

–

75

10

–

20

–

–

–

–

Travelstar 80GN Hard Disk Drive Specification

49