Device programming details

Device: LCMXO256C-4M100 [ISP JTAG Mode]

  • Manufacturer(s): Lattice
  • Device type: PLD, PAL, EPLD

Lattice LCMXO256C-4M100 [ISP JTAG Mode] is programmed "in-system", i.e. being installed on a board. The matrix below lists Phyton device programmers that support the LCMXO256C-4M100 [ISP JTAG Mode] device in-system programming and appropriate cable-Adapters or device library licenses.

LCMXO256C-4M100 [ISP JTAG Mode] is programmed by
Connection or Adapter Device programmers Required license
Connection diagramsCPI2-B1-LTPLDCPI2-D-LTPLD device library license is preloaded
Connection diagramsCPI2-B1, CPI2-GxCPI2-D-LTPLD device library license is required
Connection diagramsCPI2-B1-x (preloaded)CPI2-D-LTPLD device library license is required
AE-ISP-ARM-2ChipProg-481, ChipProg-48 -

Recommended CPI2-B1&CPI2-Gx connection (Connection for the Devices via 4-wire JTAG)
Connection for the Devices via 4-wire JTAG

Powering the target device:
There are two alternative options for powering the targets:
1. The target gets power from the programmer (Vdd). This is possible only if the target does not consume too much energy. A capacity of the target power circuitry should not exceed 50 uF.
2. The target gets power from a built-in or external power supply. In this case the power output from the programmer should not be connected with the target. The target system should be tolerant to applying logical signals with the voltage levels exceeding the voltages on the target.
NOTE! It is strictly prohibited to power the target from both the programmer and built-in or external power supply simultaneously.

Isolating resistors:
Purpose of the resistors is to isolate the programmed chip from rest of target system. Recommended value of resistors is 2k or more. You can also use jumpers instead of the resistors.

ISP characteristics:
1. Programmer''s output capability:
1.1 Vcc - 80 mA with powering from USB and 350mA from external device programmer power supply;
1.2 Vpp - 50 mA;
1.3 logical pins - 5 mA.
2. The cable length should be less then one foot.
/Start is the input signal, active state is 0. This signal works as the Start button on the programmer.
/Error, /Good, /Busy are output logical signals, active state is 0. They indicate the programmer status and work as the corresponding LEDs on the programmer case.

Adapter Connection Table:

CPI2-B1 TARGET connectorCPI2-Gx TARGET connectorTarget Device
1Px1-
2Px11Vcc
3Px2-
4GNDGND
5Px3TDI
6GNDGND
7Px4TMS
8GNDGND
9Px5TCK
10GNDGND
11Px6-
12GNDGND
13Px7TDO
14GNDGND
15Px8-
16GNDGND
17Px9-
18GNDGND
19Px10-
20Px12-

All power supply pins included AVdd must be powered. All ground pins included AVss must be connected together.



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