AFS090 datasheet(24/334 Pages) MICROSEMI

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Device Architecture

2- 8

R e v ision 2

Array Coordinates

During many place-and-route operations in the Microsemi Designer software tool, it is possible to set

constraints that require array coordinates. Table 2-3 is provided as a reference. The array coordinates

are measured from the lower left (0, 0). They can be used in region constraints for specific logic

groups/blocks, designated by a wildcard, and can contain core cells, memories, and I/Os.

Table 2-3 provides array coordinates of core cells and memory blocks.

I/O and cell coordinates are used for placement constraints. Two coordinate systems are needed

because there is not a one-to-one correspondence between I/O cells and edge core cells. In addition, the

I/O coordinate system changes depending on the die/package combination. It is not listed in Table 2-3.

The Designer ChipPlanner tool provides array coordinates of all I/O locations. I/O and cell coordinates

are used for placement constraints. However, I/O placement is easier by package pin assignment.

Figure 2-7 illustrates the array coordinates of an AFS600 device. For more information on how to use

array coordinates for region/placement constraints, see the Designer User's Guide or online help

(available in the software) for Fusion software tools.

Table 2-3 • Array Coordinates

Device

VersaTiles

Memory Rows

All

Min.

Max.

Bottom

Top

Min.

Max.

(x, y)

AFS090

None

(3, 26)

(0, 0)

(101, 29)

AFS250

130

None

(3, 50)

(0, 0)

(133, 53)

AFS600

194

(3, 2)

(3, 76)

(0, 0)

(197, 79)

AFS1500

322

123

(3, 2)

(3, 124)

(0, 0)

(325, 129)

Note:

The vertical I/O tile coordinates are not shown. West side coordinates are {(0, 2) to (2, 2)} to {(0, 77) to (2, 77)};

east side coordinates are {(195, 2) to (197, 2)} to {(195, 77) to (197, 77)}.

Figure 2-7 •

Array Coordinates for AFS600

(0, 79)

(197, 1)

Top Row (5, 1) to (168, 1)

Bottom Row (7, 0) to (165, 0)

Top Row (169, 1) to (192, 1)

Memory

Blocks

Memory

Blocks

Memory

Blocks

UJTAG FlashROM

Top Row (7, 79) to (189, 79)

Bottom Row (5, 78) to (192, 78)

I/O Tile

(3, 77)

(3, 76)

Memory

Blocks

(3, 3)

(3, 2)

VersaTile (Core)

(3, 75)

VersaTile (Core)

(3, 4)

(0, 0)

(197, 0)

(194, 2)

(194, 3)

(194, 4)

VersaTile(Core)

(194, 75)

VersaTile (Core)

(197, 79)

(194, 77)

(194, 76)

I/O Tile to Analog Block

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