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ISPLSI2064VE-200LJ44 Datasheet(PDF) 10 Page - Lattice Semiconductor |
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ISPLSI2064VE-200LJ44 Datasheet(HTML) 10 Page - Lattice Semiconductor |
10 / 15 page 10 Specifications ispLSI 2064VE 32-I/O Signal Descriptions GOE 0/IN 3 This pin performs one of two functions. It can be programmed to function as a Global Output Enable pin or a Dedicated Input pin. GOE 1/Y0 This pin performs one of two functions. It can be programmed to function as a GLobal Output Enable or a Dedicated Clock input. This clock input is connected to one of the clock inputs of all GLBs on the device. RESET/Y1 This pin performs two functions: (1) Dedicated clock input. This clock input is brought into the Clock Deistribution Network and can optionally be routed to any GLB and/or I/O cell on the device. (2) Active Low (0) Reset pin which resets all of the registers in the device. BSCAN Input – Dedicated in-system programming Boundary Scan Enable input pin. This pin is brought low to enable the programming mode. The TMS, TDI, TDO and TCK controls become active. TDI/IN 0 Input – This pin performs two functions. When BSCAN is logic low, it functions as an input pin to load programming data into the device. TDI/IN0 is also used as one of the two control pins for the ISP State Machine. When BSCAN is high, it functions as a dedicated input pin. TMS/IN 2 Input – This pin performs two functions. When BSCAN is logic low, it functions as a pin to control the operation of the ISP State Machine. When BSCAN is high, it functions as a dedicated input pin. TDO/IN 1 Output/Input – This pin performs two functions. When BSCAN is logic low, it functions as an output pin pin to read serial shift register data. When BSCAN is high, it functions as a dedicated input pin. TCK/Y2 Input – This pin performs two functions. When BSCAN is logic low, it functions as a clock pin for the Serial Shift Register. When BSCAN is high, it functions as a dedicated clock input. This clock input is brought into the Clock Distribution Network and can optionally be routed to any GLB and/or I/O cell on the device. GND Ground (GND) VCC Vcc NC1 No Connect I/O Input/Output pins – These are the general purpose I/O pins used by the logic array. 64-I/O Signal Descriptions RESET Active Low (0) Reset pin resets all the registers in the device. GOE 0, GOE1 Global Output Enable input pins. Y0, Y1, Y2 Dedicated Clock Input – These clock inputs are connected to one of the clock inputs of all the GLBs in the device. BSCAN Input – Dedicated in-system programming Boundary Scan enable input pin. This pin is brought low to enable the programming mode. The TMS, TDI, TDO and TCK controls become active. TDI/IN 0 Input – This pin performs two functions. When BSCAN is logic low, it functions as an input pin to load programming data into the device. TDI/IN0 is also used as one of the two control pins for the ISP State Machine. When BSCAN is high, it functions as a dedicated input pin. TCK/IN 3 Input – This pin performs two functions. When BSCAN is logic low, it functions as a clock pin for the Boundary Scan state machine. When BSCAN is high, it functions as a dedicated input pin. TMS/IN 1 Input – This pin performs two functions. When BSCAN is logic low, it functions as a mode control pin for the Boundary Scan state machine. When BSCAN is high, it functions as a dedicated input pin. TDO/IN 2 Output/Input – This pin performs two functions. When BSCAN is logic low, it functions as an output pin to read serial shift register data. When BSCAN is high, it functions as a dedicated input pin. GND Ground (GND) VCC Vcc NC1 No Connect I/O Input/Output Pins – These are the general purpose I/O pins used by the logic array. Signal Name Description 1. NC pins are not to be connected to any active signals, VCC or GND. Signal Name Description 1. NC pins are not to be connected to any active signals, VCC or GND. |
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