ISPLSI2128VL-100LB100 Lattice Semiconductor, ISPLSI2128VL-100LB100 Datasheet - Page 9

• Manufacturer Part Number: ISPLSI2128VL-100LB100
• Description: 2.5V In-System Programmable SuperFAST High Density PLD
• Manufacturer: Lattice Semiconductor

1. NC pins are not to be connected to any active signals, VCC or GND.
Signal Descriptions
RESET
GOE 0, GOE1
Y0, Y1, Y2
BSCAN
TDI/IN 0
TCK/IN 3
TMS/IN 1
TDO/IN 2
IN 4 - IN 7
GND
VCC
NC
I/O
Signal Name
1
Active Low (0) Reset pin resets all the registers in the device.
Global Output Enable input pins.
Dedicated Clock Input – These clock inputs are connected to one of the clock inputs of all the GLBs in
the device.
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.
Input – This pin performs two functions. When BSCAN is logic low, it functions as a serial data input pin
to load programming data into the device. When BSCAN is high, it functions as a dedicated input pin.
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.
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.
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.
Dedicated Input Pins to the device.
Ground (GND)
Vcc
No Connect
Input/Output Pins – These are the general purpose I/O pins used by the logic array.
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Description
Specifications ispLSI 2128VL