PROASIC3E Datasheet, PDF (16/37 Pages) Actel Corporation – I/O Structures in IGLOOe and ProASIC3E Devices

I/O Structures in IGLOOe and ProASIC3E Devices
Table 9 • Hot-Swap Level 1
Description
Power Applied to Device
Bus State
Card Ground Connection
Device Circuitry Connected to Bus Pins
Example Application
Compliance of IGLOO and ProASIC3 Devices
Table 10 • Hot-Swap Level 2
Description
Power Applied to Device
Bus State
Card Ground Connection
Device Circuitry Connected to Bus Pins
Example Application
Compliance of IGLOO and ProASIC3 Devices
Cold-swap
No
–
–
–
System and card with Actel FPGA chip are
powered down, and the card is plugged into
the system. Then the power supplies are turned
on for the system but not for the FPGA on the
card.
30 k gate devices: Compliant
Other IGLOO/ProASIC3 devices: Compliant if bus
switch used to isolate FPGA I/Os from rest of
system
IGLOOe/ProASIC3E devices: Compliant I/Os can,
but do not have to be set to hot-insertion
mode.
Hot-swap while reset
Yes
Held in reset state
Reset must be maintained for 1 ms before,
during, and after insertion/removal.
–
In the PCI hot-plug specification, reset control
circuitry isolates the card busses until the card
supplies are at their nominal operating levels
and stable.
30 k gate devices, all IGLOOe/ProASIC3E devices:
Compliant I/Os can but do not have to be set to
hot-insertion mode.
Other IGLOO/ProASIC3 devices: Compliant
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