LSI53C875 LSI Logic, LSI53C875 Datasheet - Page 181

• Manufacturer Part Number: LSI53C875
• Description: PCI to Ultra SCSI I/O Processor
• Manufacturer: LSI Logic

1. These values will be correct if the CCF bits in the
SEL
GEN [3:0]
SEL [3:0]
HTH [7:4]
(SCNTL3)
description.
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
register are set according to the valid combinations in the bit
Selection Time-Out
These bits select the SCSI selection/reselection time-out
period. When this timing (plus the 200 s selection abort
time) is exceeded, the STO bit in the
tus One (SIST1)
explanation of interrupts, refer to
Description.”
40 MHz/80 MHz
Disabled
128 ms
256 ms
512 ms
1.024 s
2.048 s
125 s
250 s
500 s
16 ms
32 ms
64 ms
1 ms
2 ms
4 ms
8 ms
register is set. For a more detailed
Minimum Time-out
Chapter 2, “Functional
SCSI Control Three
1
SCSI Interrupt Sta-
102.4 ms
204.8 ms
409.6 ms
819.2 ms
1.6384 s
Disabled
12.8 ms
25.6 ms
51.2 ms
50 MHz
100 s
200 s
400 s
800 s
1.6 ms
3.2 ms
6.4 ms
[3:0]
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