SMH4042A
• The medium length pins contact.
•
BD_SEL#makescontact(optional:thepull-upon
the board indicates to the host the presence of a board.)
The host responds to the ENUM# signal and
drives BD_SEL# low.
•
The ENUM# signal should not be active at this
point.
•
• The board is fully inserted and the injector switch
•
This provides the last gating item to the
is closed.
SMH4042A before it will begin the power-on sequence.
•
ENUM# is driven low.
BD_SEL1#
LOCAL_PCI_RST#
LOCAL_PCI_RST
Power
On
3.9kΩ
10kΩ
R
LIM
SMH4042A
m
BD_SEL2#
ro
oBrad
lPtaf
PCI_RST#
ENUM#
OC
CARD
SWITCH
Board
Status
2070 Fig19
Figure 18. Full Hot Swap Board/Host Interface
SUMMIT MICROELECTRONICS, Inc.
2070 9.1 5/27/03
21
SUMMIT [ SUMMIT MICROELECTRONICS, INC. ]
