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ISPLSI1016E100LT44I Datasheet(PDF) 10 Page - Lattice Semiconductor |
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ISPLSI1016E100LT44I Datasheet(HTML) 10 Page - Lattice Semiconductor |
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10 / 15 page  10 1996 ISP Encyclopedia Specifications ispLSI and pLSI 1016E In-System Programmability The ispLSI devices are the in-system programmable versions of the Lattice Semiconductor High-Density Pro- grammable Large Scale Integration (pLSI) devices. By integrating all the high voltage programming circuitry on- chip, programming can be accomplished by simply shifting data into the device. Once the function is programmed, the non-volatile E2CMOS cells will not lose the pattern even when the power is turned off. All necessary programming is done via five TTL level logic interface signals. These five signals are fed into the on-chip programming circuitry where a state machine controls the programming. The simple signals for the interface include isp Enable ( ispEN), Serial Data In (SDI), Serial Data Out (SDO), Serial Clock (SCLK) and Mode (MODE) control. Figure 4 illustrates the block diagram of one possible scheme for programming the ispLSI de- vices. For details on the operation of the internal state machine and programming of the device, please refer to the ISP Architecture and Programming section of the 1996 Lattice Data Book. The device identifier for the ispLSI 1016E is 0000 1011 (0B hex). This code is the unique device identifier which is generated when a read ID command is performed. Figure 4. ISP Programming Interface ispGDS ispGAL ispLSI SCLK MODE SCLK MODE SDI SDO SDO SDO SDI SDI ispEN SCLK MODE SDO SDI MODE SCLK ispEN 5-wire ISP Programming Interface ispLSI SCLK MODE SDI SDO ispEN 0294B |
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