AGLP030 datasheet(13/134 Pages) MICROSEMI

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IGLOO PLUS Low Power Flash FPGAs

Revision 16

1-7

Each I/O module contains several input, output, and output enable registers.

Hot-swap (also called hot-plug, or hot-insertion) is the operation of hot-insertion or hot-removal of a card

in a powered-up system.

Cold-sparing (also called cold-swap) refers to the ability of a device to leave system data undisturbed

when the system is powered up, while the component itself is powered down, or when power supplies

are floating.

Wide Range I/O Support

IGLOO PLUS devices support JEDEC-defined wide range I/O operation. IGLOO PLUS devices support

both the JESD8-B specification, covering 3 V and 3.3 V supplies, for an effective operating range of

2.7 V to 3.6 V, and JESD8-12 with its 1.2 V nominal, supporting an effective operating range of 1.14 V to

1.575 V.

Wider I/O range means designers can eliminate power supplies or power conditioning components from

the board or move to less costly components with greater tolerances. Wide range eases I/O bank

management and provides enhanced protection from system voltage spikes, while providing the flexibility

to easily run custom voltage applications.

Specifying I/O States During Programming

You can modify the I/O states during programming in FlashPro. In FlashPro, this feature is supported for

PDB files generated from Designer v8.5 or greater. See the FlashPro User’s Guide for more information.

Note: PDB files generated from Designer v8.1 to Designer v8.4 (including all service packs) have

limited display of Pin Numbers only.

1. Load a PDB from the FlashPro GUI. You must have a PDB loaded to modify the I/O states during

programming.

2. From the FlashPro GUI, click PDB Configuration. A FlashPoint – Programming File Generator

window appears.

3. Click the Specify I/O States During Programming button to display the Specify I/O States During

Programming dialog box.

4. Sort the pins as desired by clicking any of the column headers to sort the entries by that header.

Select the I/Os you wish to modify (Figure 1-4 on page 1-8).

5. Set the I/O Output State. You can set Basic I/O settings if you want to use the default I/O settings

for your pins, or use Custom I/O settings to customize the settings for each pin. Basic I/O state

settings:

1 – I/O is set to drive out logic High

0 – I/O is set to drive out logic Low

Last Known State – I/O is set to the last value that was driven out prior to entering the

programming mode, and then held at that value during programming

Z -Tri-State: I/O is tristated

AGLP030 数据表(PDF) 13 Page - Microsemi Corporation

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