LSI53C825AJ LSI, LSI53C825AJ Datasheet - Page 121

• Manufacturer Part Number: LSI53C825AJ
• Manufacturer: LSI

Specifications of LSI53C825AJ

• Lead Free Status / RoHS Status: Not Compliant

Operating Registers
Table 4.4
Table 4.5
Table 4.4
combinations.
(MHz)
66.67
66.67
37.50
33.33
16.67
(MHz)
CLK
66.67
66.67
37.50
33.33
16.67
CLK
50
50
40
25
20
50
50
40
25
20
Bits [6:4] XFERP
SCNTL3
Bits [6:4] XFERP
SCNTL3
CLK
SCSI
CLK
SCSI
1.5
1.5
and
1.5
1.5
3
3
2
2
2
1
1
1
1
1
1
1
1
1
1
1
Examples of Synchronous Transfer
Periods and Rates for SCSI-1
Example Transfer Periods and Rates for
Fast SCSI-2
Table 4.5
4
5
4
5
4
4
4
4
4
4
4
5
4
5
4
4
4
4
4
4
Period (ns)
show examples of possible bit
Transfer
Synch.
Transfer
Synch.
180
225
160
200
200
160
180
160
200
240
Period
106.67
112.5
(ns)
100
100
120
160
200
240
90
80
Send Rate
(Mbytes)
(Mbytes)
Synch.
Transfer
Synch.
5.55
4.44
6.25
6.25
5.55
6.25
4.17
11.11
9.375
Rate
8.88
12.5
10.0
10.0
8.33
6.25
4.17
5
5
5
5
(Mbytes)
(Mbytes)
Receive
Transfer
Receive
Synch.
Synch.
11.11
11.11
9.375
Rate
5.55
5.55
6.25
6.25
6.25
5.55
6.25
4.17
Rate
12.5
12.5
10.0
8.33
6.25
4.17
5
5
5
4-33