In-System Programmable SuperFAST™ High Density PLD

The ISPLSI2128E is a High Density Programmable Logic Device. The device contains 128 Registers 128 Univer- sal I/O pins, eight Dedicated Input pins, three Dedicated Clock Input pins, two dedicated Global OE input pins and a Global Routing Pool (GRP). The GRP provides com- plete interconnectivity between all of these elements. The ISPLSI2128E features 5V in-system programmabil- ity and in-system diagnostic capabilities. The ispLSI 2128E offers non-volatile reprogrammability of all Logic as well as the interconnect to provide truly reconfigurable systems. The basic unit of Logic on the ISPLSI2128E device is the Generic Logic Block (GLB). The GLBs are labeled A0, A1 .. D7 (see Figure 1). There are a total of 32 GLBs in the ISPLSI2128E device. Each GLB is made up of four macrocells. Each GLB has 18 inputs, a programmable AND/OR/Exclusive OR array, and four outputs which CAN be configured to be either combinatorial or registered.Inputs to the GLB come from the GRP and dedicated inputs. All of the GLB outputs are brought back into the GRP so that they CAN be connected to the inputs of any GLB on the device. By Lattice Semiconductor Corp.