MB86604L Datasheet, PDF (35/56 Pages) Fujitsu Component Limited. – SCSI-II Protocol Controller (with single-ended driver/receiver)

MB86604L
• Synchronous transfer mode
(a) REQ/ACK signal period
Parameter
Symbol
Base signal
Position*¹
Value
Min.
Max.
ACK assert time *²
ACK negate time *²
REQ assert time
REQ negate time
REQ input cycle time 1
REQ input cycle time 2
—
tAKAP
A
A • tCLK – 12 —
—
tAKNP
B
N • tCLK + 2
—
—
tRQAP
C
20
—
—
tRQNP
D
20
—
—
tRQCY1
E
1 tCLK
—
—
tRQCY2
F
3 tCLK
—
*1: The position number indicates the position in the waveform.
*2: “A” and “N” values are based on the transfer period register (address 0Dh) setting.
Unit
ns
ns
ns
ns
ns
ns
ACK
REQ
A
t AKAP
B
t AKNP
C
t RQAP
D
t RQNP
E
t RQCY1
F
t RQCY2
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