Adaptec 2740A User Manual - Page 58
Data FIFO Threshold, Configuring the Host Adapter
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Configuring the Host Adapter Host Adapter Interface Definitions Bus Release Time ( ) 60 BCLKS ( ) 44 BCLKS ( ) 28 BCLKS ( ) 12 BCLKS ( ) 2 BCLKS Done=F10 Figure 3-3. Selecting Bus Release Time Data FIFO Threshold Select Data FIFO Threshold to configure the percentage used by the host adapter. Figure 3-4 displays your choices. The default setting is 100%. Normally a Data FIFO Threshold of 100% is optimum. Host Adapter Interface Definitions Data FIFO Threshold ( ) 100% ( ) 75% ( ) 50% ( ) 0% Done=F10 Figure 3-4. Selecting Data FIFO Threshold Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev. C (Page 3-7) Print Spec Number: 491709-00 Rev C Current Date: 9/1/93 ECN Date: 9/14/93 3-7
Data FIFO Threshold
Select
Data FIFO Threshold
to configure the percentage used
by the host adapter. Figure 3-4 displays your choices. The default
setting is
100%
.
Normally a Data FIFO Threshold of 100% is optimum.
Host Adapter Interface Definitions
Bus Release Time
(
) 60 BCLKS
(
) 44 BCLKS
(
) 28 BCLKS
(
) 12 BCLKS
(
)
2 BCLKS
Done=F10
<Edit Resources=F6>
<Cancel=ESC>
Figure 3-3.
Selecting Bus Release Time
Host Adapter Interface Definitions
Data FIFO Threshold
(
) 100%
(
)
75%
(
)
50%
(
)
0%
Done=F10
<Edit Resources=F6>
<Cancel=ESC>
Figure 3-4.
Selecting Data FIFO Threshold
Adaptec AHA-2740 Series User’s Manual
Stock Number:
510381-00
/
Rev. C
(Page 3-7)
Print Spec Number:
491709-00 Rev C
Current Date:
9/1/93
ECN Date:
9/14/93
Configuring the Host Adapter
3-7