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Avago Technologies LSI53C1000R User Manual

Page 192

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4-80

Registers

Version 2.2

Copyright © 2000–2003 by LSI Logic Corporation. All rights reserved.

SEL[3:0]

Selection Time-Out

[3:0]

These bits select the SCSI selection/reselection time-out
period. When this timing (plus the 200

µ

s selection abort

time) is exceeded, the STO bit in the

SCSI Interrupt Status One (SIST1)

register is set. For a

more detailed explanation of interrupts, refer to

Chapter 2, “Functional Description.”

HTH[3:0], SEL[3:0]

Minimum Time-Out

0000

Disabled

0001

125

µ

s

0010

250

µ

s

0011

500

µ

s

0100

1 ms

0101

2 ms

0110

4 ms

0111

8 ms

1000

16 ms

1001

32 ms

1010

64 ms

1011

128 ms

1100

256 ms

1101

512 ms

1110

1.024 s

1111

2.048 s

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