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EPM7256E Datasheet(PDF) 9 Page - Altera Corporation |
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EPM7256E Datasheet(HTML) 9 Page - Altera Corporation |
9 / 66 page Altera Corporation 9 MAX 7000 Programmable Logic Device Family Data Sheet Each LAB is fed by the following signals: ■ 36 signals from the PIA that are used for general logic inputs ■ Global controls that are used for secondary register functions ■ Direct input paths from I/O pins to the registers that are used for fast setup times for MAX 7000E and MAX 7000S devices Macrocells The MAX 7000 macrocell can be individually configured for either sequential or combinatorial logic operation. The macrocell consists of three functional blocks: the logic array, the product-term select matrix, and the programmable register. The macrocell of EPM7032, EPM7064, and EPM7096 devices is shown in Figure 3. Figure 3. EPM7032, EPM7064 & EPM7096 Device Macrocell Product- Ter T T m Select Matrix 36 Signals from PIA 16 Expander Product Ter T T ms Logic Array Parallel Logic Expanders (from other macrocells) Shared Logic Expanders Clear Select Global Clear Global Clocks Clock/ Enable Select 2 PRN CLRN D/T Q ENA Register Bypass To I/O Control Block to PIA Programmable Register From I/O pin Fast Input Select VCC |
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