EP1M350 datasheet(31/86 Pages) ALTERA

31 / 86 page

Altera Corporation

Mercury Programmable Logic Device Family Data Sheet

Figure 14. RapidLAB Interconnect Connections

The column interconnect vertically routes signals to and from LABs, ESBs,

and I/O bands. Each column of LABs is served by a dedicated column

interconnect. These column resources include:

■

Column interconnect traversing the entire device from top to bottom

■

Priority column interconnect for high speed access across the device

vertically

■

Leap line interconnect for vertical routing between adjacent LAB

rows and between adjacent ESP rows and LAB rows.

Leap lines are driven directly by LEs for fast access to adjacent row

interconnects. LABs can drive a leap line to the row above and/or below

(including ESB rows). The even-numbered LEs in a LAB drive leap lines

down, while odd-numbered LEs drive leap lines up. This allows a single

LAB to access row and RapidLAB interconnects within a three-row

region. Figure 15 shows the leap line interconnect.

LE 1

LE 3

LE 5

LE 7

LE 9

LE 2

LE 4

LE 6

LE 8

LE 10

RapidLAB Interconnect

Local Interconnect

RapidLAB interconnects driven by odd-numbered

LEs can drive out to the four LEs to the left and five

LEs to the right through local interconnects.

RapidLAB interconnects driven by even-numbered

LEs can drive out to the four LEs to the right and five

LEs to the left through local interconnects.

LAB

EP1M350 数据表(PDF) 31 Page - Altera Corporation

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