MB86604LPFV datasheet(37/56 Pages) FUJITSU

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MB86604L

(7) SCSI interface (as initiator)

• Asynchronous transfer mode

(a) Input timing (initiator

→ target)

*1: The position number indicates the position in the waveform.

*2: The REQ “L”

→ REQ “L” time (tAKRQ2) is compared with (tAKRQH + tRQAKH + tAKRQ1) and the longer value is chosen.

Note: The input timing definition is not applied in the following cases.

• When the data register is FULL in the data phase

• When the final byte is being transferred

Parameter

Symbol

Value

Unit

Base signal

Position*1

Min.

Max.

ACK “L” assert time

REQ “L”

tRQAKL

—

REQ “H” negate time

ACK “L”

tAKRQH

—

ACK “H” negate time

REQ “H”

tRQAKH

C0—

Input data set up time

ACK “L”

tsuDB

D10—

Input data hold time

ACK “L”

thDB

E20

—

ACK “L” assert time 1

ACK “H”

tAKRQ1

—

ACK “L” assert time 2 *2

ACK “H”

tALRQ2

G—

3 tCLK + 40

Data

DB7 to DB0

DBP

REQ

ACK

t AKRQ2

t RQAKL

t AKRQH

t RQAKH

t AKRQ1

t hDB

t suDB

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