LSISAS1068 LSI, LSISAS1068 Datasheet - Page 100

• Manufacturer Part Number: LSISAS1068
• Manufacturer: LSI

Specifications of LSISAS1068

• Lead Free Status / RoHS Status: Not Compliant

4-30
PCI Host Register Description
Copyright © 2004, 2005 by LSI Logic Corporation. All rights reserved.
Device Complexity
The PCI function clears this read only bit to indicate that
the LSISAS1068 is a simple device.
Unexpected Split Completion
The PCI function sets this read only bit when it receives
an unexpected split completion. Once set, this bit
remains set until software clears it. Write a one (1) to this
bit to clear it.
Split Completion Discarded
The PCI function sets this read only bit when it discards
a split completion. Once set, this bit remains set until
software clears it. Write a one (1) to this bit to clear it.
133 MHz Capable
The MAD[15] Power-On Sense pin controls this read only
bit. Allowing the internal pull-downs to pull MAD[15] LOW
sets this bit and enables 133 MHz operation of the PCI
bus. Pulling MAD[15] HIGH clears this bit and disables
133 MHz operation of the PCI bus. Refer to
“Power-On Sense Pins Description,”
concerning the Power-On Sense pins.
64-Bit Device
The MAD[14] Power-On Sense pin controls this read only
bit. Allowing the internal pull-downs to pull MAD[14] LOW
sets this bit and indicates a 64-bit PCI Address/Data bus.
Pulling MAD[14] HIGH clears this bit and indicates a
32-bit PCI Address/Data bus. If using the LSISAS1068 on
an add-in card, this bit must indicate the size of the card’s
PCI Address/Data bus. Refer to
Sense Pins Description,”
the Power-On Sense pins.
Bus Number
These read only bits indicate the number of the
LSISAS1068 bus segment. The PCI function uses this
number as part of its Requester ID and Completer ID.
This field is read for diagnostic purposes only.
Device Number
These read only bits indicate the device number of the
LSISAS1068. The PCI function uses this number as part
of its Requester ID and Completer ID. This field is read
for diagnostic purposes only.
for more information concerning
Section 3.12, “Power-On
for more information
Section 3.12,
[15:8]
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