Figure 8.2 Hot-Plug With Switch On Add-In Card Application; Figure 8.3 Hot-Plug With Carrier Card Application - Renesas IDT 89HPES4T4 User Manual

IDT Hot-Plug and Hot-Swap
Notes
PES4T4 User Manual
Add-In Card

Figure 8.2 Hot-Plug with Switch on Add-In Card Application

Carrier
Card

Figure 8.3 Hot-Plug with Carrier Card Application

The PCI Express Base Specification revision 1.0a allowed a hot-plug attention indicator, power indicator,
and attention button to be located on the board on which the slot is implemented or on the add-in board.
When located on the add-in board, state changes are communicated between the hot-plug controller asso-
ciated with the slot and the add-in card via hot-plug messages. This capability was removed in revision 1.1
of the PCI Express Base Specification and is not supported in the PES4T4.
Upstream
Link
Port 0
PES4T4
... ... ...
Port x Port y
PCI Express PCI Express
Device Device
Upstream
Link
Port 0
PES4T4
Master SMBus
Clock and Data
... ... ...
Port x Port y
Hot-Plug Signals
Port x Port y
Slot Slot
8 - 2
SMBus I/O
Expander
February 1, 2011