LFXP2-8E-5FTN256I Lattice, LFXP2-8E-5FTN256I Datasheet - Page 303

• Manufacturer Part Number: LFXP2-8E-5FTN256I
• Description: FPGA - Field Programmable Gate Array 8K LUTs 201 I/O Inst on DSP 1.2V -5 Spd
• Manufacturer: Lattice

Specifications of LFXP2-8E-5FTN256I

• Number Of Macrocells: 8000
• Number Of Programmable I/os: 201
• Data Ram Size: 226304
• Supply Voltage (max): 1.26 V
• Maximum Operating Temperature: + 100 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Supply Voltage (min): 1.14 V
• Package / Case: FTBGA-256
• Number Of Logic Elements/cells: *
• Number Of Labs/clbs: *
• Total Ram Bits: 226304
• Number Of I /o: 201
• Number Of Gates: -
• Voltage - Supply: 1.14 V ~ 1.26 V
• Mounting Type: *
• Operating Temperature: -40°C ~ 100°C
• Package: 256FTBGA
• Family Name: LatticeXP2
• Device Logic Units: 8000
• Typical Operating Supply Voltage: 1.2 V
• Maximum Number Of User I/os: 201
• Ram Bits: 226304
• Re-programmability Support: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Lattice Semiconductor
Programming the Key into the Device
The next step is to program the 128-bit encryption key into the LatticeXP2. Note that this step is separated from
JEDEC file encryption to allow flexibility in the manufacturing flow. This flow adds to design security and it allows
the user to control over-building of a design. Over-building occurs when a third party builds more boards than are
authorized and sells them to grey market customers. If the key is programmed at the factory, then the factory con-
trols the number of working boards that enter the market. The LatticeXP2 will only configure from a file that has
been encrypted with the same 128-bit encryption key that is programmed into the LatticeXP2.
To program the 128-bit encryption key into the LatticeXP2, proceed as follows.
Figure 15-7. ispVM Device information GUI
1. Start ispVM. You can start ispVM from the Start -> Programs -> Lattice Semiconductor menu in Win-
2. Attach a Lattice ispDOWNLOAD
3. Apply power to the board.
4. If the window does not show the board’s JTAG chain, then proceed as follows. Otherwise, proceed to step
5. Double-click on the line in the chain containing the LatticeXP2. This will open the Device Information win-
dows or from the ispLEVER GUI. You will see a window that looks similar to Figure 15-5.
Note: The 128-bit encryption key can only be programmed into the LatticeXP2 using the JTAG port.
number 5.
dow (see Figure 15-7). From the Device Access Options drop-down box, select Advanced Security
Mode, then click on the Security Key button to the right. The window will look similar to Figure 15-8.
a. Click the SCAN button in the toolbar to find all Lattice devices in the JTAG chain. The chain shown in
Figure 15-5 has only one device, the LatticeXP2.
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cable from a PC to the JTAG connector wired to the LatticeXP2.
15-4
Encryption and Security Usage Guide
LatticeXP2 Configuration