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Initiator and target dt synchronous transfer – Avago Technologies LSI53C1010R User Manual

Page 355

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SCSI Timing Diagrams

6-65

Version 2.2

Copyright © 2000–2003 by LSI Logic Corporation. All rights reserved.

Figure 6.40 Initiator and Target DT Synchronous Transfer

Table 6.50

Ultra160 SCSI Transfers 160 Mbyte (16-Bit Transfers) Quadrupled
40 MHz Clock

Symbol

Parameter

Min

Max

Unit

t

DT1

Send SREQ/ assertion pulse width

11.5

ns

t

DT2

Send SREQ/ deassertion pulse width

11.5

ns

t

DT1

Receive SREQ/ assertion pulse width

10

ns

t

DT2

Receive SREQ/ deassertion pulse width

10

ns

t

DT3

Send data setup to SREQ/ transition

5

ns

t

DT4

Send data hold from SREQ/ transition

5

ns

t

DT5

Receive data setup to SREQ/ transition

1.25

ns

t

DT6

Receive data hold from SREQ/ transition

1.25

ns

t

DT7

Send CRC Request Setup to SREQ/ transition

15

ns

t

DT8

Send CRC Request Hold to SREQ/ transition

5

ns

t

DT9

Receive CRC Request Setup to SREQ/ transition

8.25

ns

t

DT10

Receive CRC Request Hold to SREQ/ transition

1.25

ns

t

DT1

SREQ/SACK

Send Data

(SD[15:0]/)

Receive Data

(SD[15:0]/)

t

DT2

t

DT5

Send CRC

Request

(DP0/)

Receive CRC

Request

(DP0/)

t

DT3

t

DT4

t

DT6

t

DT5

t

DT6

t

DT3

t

DT4

t

DT8

t

DT7

t

DT10

t

DT9