Lattice Semiconductor ispMACH 4256V User manual

ispMACH®4256V Breakout Board Evaluation Kit User Guide
EB104 Version 1.0, December 2015

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ispMACH 4256V Breakout Board Evaluation Kit
Introduction
Thank you for choosing the Lattice Semiconductor ispMACH®4256V Breakout Board Evaluation Kit!
This user guide describes how to start using the ispMACH 4256V Breakout Board, an easy-to-use platform for
evaluating and designing with the ispMACH 4256V CPLD. Along with the board and accessories, this kit includes a
pre-loaded hardware test program. You may also reprogram the on-board ispMACH 4256V device to review your
own custom designs.
Note: Static electricity can severely shorten the lifespan of electronic components. See the Storage and Handling
section for handling and storage tips.
Features
The ispMACH 4256V Breakout Board Evaluation Kit includes:
•ispMACH 4000V Breakout Board – The board is a 3” x 3” form factor that features the following on-board com-
ponents and circuits:
— ispMACH 4256V CPLD (LC4256V-5TN144C)
— USB mini-B connector for power and programming
— Eight LEDs
— 4 x 15 prototype area
— Four 2 x 20 expansion header landings for general I/O, JTAG, and external power
— 1x8 expansion header landing for JTAG
— 3.3 V supply rails
•Pre-loaded Demo – The kit includes a pre-loaded counter design that highlights use of an external oscillator and
programmable I/Os configured for LED drive.
•USB Connector Cable – The board is powered from the USB mini-B socket when connected to a host PC. The
USB channel also provides a programming interface to the ispMACH 4256V JTAG port.
•Lattice Breakout Board Evaluation Kits Web Page – Visit www.latticesemi.com/breakoutboards for the latest
documentation (including this guide), demo designs, and drivers for the kit.
The content of this user guide includes demo operation, programming instructions, top-level functional descriptions
of the Breakout Board, descriptions of the on-board connectors, and a complete set of schematics.

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ispMACH 4256V Breakout Board Evaluation Kit
Figure 1. ispMACH 4256V Breakout Board, Top Side
Left Side
Two 2x20 Header
Landings (J3, J4)
LED Array 4x15 Prototype Area
Right Side
Two 2x20 Header
Landings (J5, J6)
USB Interface
(J2)
JTAG Header Landing
(J1)
5 MHz
Oscillator
Storage and Handling
Static electricity can shorten the lifespan of electronic components. Please observe these tips to prevent damage
that could occur from electro-static discharge:
• Use anti-static precautions such as operating on an anti-static mat and wearing an anti-static wrist-band.
• Store the evaluation board in the packaging provided.
• Touch a metal USB housing to equalize voltage potential between you and the board.
Software Requirements
You should install the following software before you begin developing new designs for the Breakout Board:
• FTDI USB Hardware Drivers (www.latticesemi.com/breakoutboards) or Diamond Programmer (required for re-
programming)
• Optional: ispLEVER Classic 1.4 (ispMACH 4000V CPLD support)
Demonstration Design
Lattice provides a pre-programmed demo to illustrate basic operation of the ispMACH 4256V CPLD device. The
design integrates an up-counter which uses an external 5 MHz SiTIME oscillator. The design alternates to CPLD
outputs, illuminating LEDs D1, D3, D5 and D7 then LEDs D2, D4, D6 and D8.
Note: To restore the factory default demo or program it with other Lattice-supplied examples see the Download
Demo Designs section of this document.

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ispMACH 4256V Breakout Board Evaluation Kit
The preprogrammed demonstration design is an up counter which is used to drive an LED array. The demo uses
the external 5 MHz SiTIME oscillator to run the counter. The 23-bit up counter advances each second. The output
of the counter is used to drive the LED array. The resulting light pattern will appear as an alternating pair of lit LEDs
per row.
Figure 2. Counter Demo Block Diagram
LED Array
ispMACH 4256V
Ext. 5 MHz osc. 23-bit Up counter
Run the Demonstration Design
NOTE: If you have already installed Lattice software tools, you can skip the following installation step.
WARNING: Do not connect the Breakout Board to your PC before you follow the driver installation procedure of
this section.
Communication with the Breakout Board with a PC via the USB connection cable will require the FTDI chip USB
hardware drivers contained in the Software Requirements section. Loading these drivers enables the computer to
reliably recognize and program the Breakout Board. Drivers can be loaded as part of the installation of Lattice Dia-
mond®design software or Diamond Programmer or a stand-alone package.
To load the FTDI chip USB hardware drivers as part of the Lattice Diamond installation:
1. Select Programmer Drivers in the Product Options of Lattice Diamond Setup.
2. Select FTDI Windows USB Driver or All Drivers in the LSC Drivers Install/Uninstall dialog box..
3. Click Finish to install the USB driver.
4. Connect the USB cable from a USB port on your PC to the board’s USB mini-B socket (J2). After connection is
made, a green Power LED (D9) will light indicating the board is powered on.
5. Red LEDs will light and start to flash according to the preprogrammed demonstration design.
See the Troubleshooting section of this guide if the board does not function as expected.

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ispMACH 4256V Breakout Board Evaluation Kit
To load the FTDI chip USB hardware drivers via the stand-alone package:
1. Browse to www.latticesemi.com/breakoutboards and download the FTDI chip USB Hardware driver package.
2. Extract the FTDI chip USB Hardware driver package to your PC hard drive.
3. Connect the USB cable from a USB port on your PC to the board’s USB mini-B socket (J2). After connection is
made, a green Power LED (D9) will light indicating the board is powered on.
4. If you are prompted, “Windows may connect to Windows Update” select No, not this time from available
options and click Next to proceed with the installation. Choose the Install from specific location (Advanced)
option and click Next.
5. Search for the best driver in these locations and click the Browse button to browse to the Windows driver folder
created in the Download Windows USB Hardware Drivers section. Select the CDM 2.04.06 WHQL Certified
folder and click OK.
6. Click Next. A screen will display as Windows copies the required driver files. Windows will display a message
indicating that the installation was successful.
7. Click Finish to install the USB driver.
8. Red LEDs will light and start to flash according to the preprogrammed demonstration design.
See the Troubleshooting section of this guide if the board does not function as expected.
Download Demo Designs
A demo is preprogrammed into the Breakout Board, however over time it is likely your board will be modified. Lat-
tice distributes source and programming files for demonstration designs compatible with the Breakout Board.
To download demo designs:
1. Browse to the Lattice Breakout Board web page (www.latticesemi.com/breakoutboards). Select the ispMACH
4256V Demo Application download and save the file.
2. Extract the contents of Demo_ispMACH4256V.zip to an accessible location on your hard drive.
The demo design directory, Demo_ispMACH4256V, is unpacked.
Recompile a Demonstration Project with ispLEVER Classic
Use the procedure described below to recompile a demo project for the Breakout Board.
1. Install and license ispLEVER Classic software.
2. Run the ispLEVER Classic Project Navigator.
3. Browse to the demo design directory, Demo_ispMACH4256V, and open the Demo_ispMACH4256V.syn proj-
ect file.
4. From the Source in project window, select the target device. 
The Fit Design process appears in the Processes for current source window.
5. Select Fit Design, right-click and choose Start.
After a few moments the JEDEC programming file is output.
6. See the Programming with Lattice Diamond Programmer section for details on downloading a programming file
to the board.



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ispMACH 4256V Breakout Board Evaluation Kit
Programming with Lattice Diamond Programmer
A demonstration design is pre-programmed into the ispMACH 4256V Breakout Board by Lattice. To restore the
Breakout Board to factory settings or load an alternative demo design, use the procedures in this section.
To install Lattice Diamond Programmer tool:
1. Install license and run Lattice Diamond Programmer software. See http://www.latticesemi.com/Prod-
ucts/DesignSoftwareAndIP/ProgrammingAndConfigurationSw/Programmer.aspx for download information.
2. Connect the board to a host PC using the USB port header connection.
3. Follow the USB Cable Interface procedure below to program the evaluation board.
The Breakout Board is equipped with a built-in USB-based programming circuit. This consists of a USB PHY and a
USB connector. When the board is connected to a PC with a USB cable, it is recognized by the ispVM System soft-
ware as a USB Download Cable. The ispMACH 4256V can then be scanned and programmed using the ispVM
System software.
To program a demo programming file:
1. Once you open Diamond Programmer tool, the first thing that it will do is detect the USB cable.
2. Click Detect Cable. The Programmer will detect the cable.
3. Make the following selections:
Cable Type: HW-USBN-2b (FTDI)
Port Setting: FTUSB-0
Click OK. If the cable is not detected, see the Troubleshooting section.
4. The Programmer automatically scans the device attached to the USB cable.
5. Once the device is detected, the LC4256V(B) option is selected by default. To choose the correct device, click
LC4256V(B) and a device drop-down menu appears. From the drop-down menu select LC4256V device.
6. From the File Name section, click the Browse button.
The Open Data File dialog appears.
7. Browse to the <Demo Dir> folder, select <Demo>.jed, and click Open. From the Operation list choose Erase,
Program, Verify and click OK.
8. Click the Program icon. When complete, PASS is displayed in the Status column.
Programming requires about 10 seconds. A small timer window will appear to show elapsed programming time. At
the end of programming, the configuration setup window should show a “PASS” in the Status column.
ispMACH 4256V Breakout Board
This section describes the features of the ispMACH 4256V Breakout Board in detail.
Overview
The ispMACH 4256V Breakout Board is a complete development platform for the ispMACH 4256V CPLD. The
board includes a prototyping area, a USB program/power port, an LED array, and header landings with electrical
connections to most of the CPLDs programmable I/O, power and JTAG pins. The board is powered by the PC’s
USB port or optionally with external power. You may create or modify CPLD program files using ispLEVER Classic
software and reprogram the board using ispVM software.

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ispMACH 4256V Breakout Board Evaluation Kit
Figure 3. ispMACH 4256V Breakout Board Block Diagram
ispMACH4256V-5T
N144C
2 x 20 Header
Landing (J3)
LED
Array
20 GPIO
USB
Controller
USB Mini B
Socket
A/Mini-B
USB Cable JTAG
Programming 8
2 x 20 Header
Landing (J4)
35 GPIO
40 GPIO
15 GPIO
1 x 8JTAG Header
Landing (J1)
8
5 MHz
Oscillator
2 x 20 Header
Landing (J5)
2 x 20 Header
Landing (J6)
Table 1 describes the components on the board and the interfaces it supports.
Table 1. Breakout Board Components and Interfaces
Component/Interface Type Schematic Reference Description
Circuits
USB Controller Circuit U2: FT2232H USB-to-JTAG interface and dual USB UART/FIFO IC
USB Mini-B Socket I/O J1:USB_MINI_B Programming and debug interface
Components
LC4256V CPLD U4: LC4256V-5TN144C 256-macrocell CPLD packaged in a 20 mm x 20
mm, 144-pin TQFP
SiTIME5.00000M Oscillator X5: SIT8918AE-13-33E-
5.000000G SiTIME 5 MHz external SMD oscillator
Interfaces
LED Array Output D8-D1 Red LEDs
Four 2x20 header landings I/O
J3: header_2x20
J4: header_2x20
J5: header_2x20
J6: header_2x20
User-definable I/O
1 x 8 header landing I/O J1: header_1x8 Optional JTAG interface
4 x 15 prototype area J9 Prototype area 100mil centered holes
Subsystems
This section describes the principle subsystems for the ispMACH 4256V Breakout Board in alphabetical order.
Clock Sources
All clocks for the counter demonstration design originates from an external 5 MHz oscillator connected to Pin 128
of ispMACH 4256V chip. You may use an expansion header landing to drive a CPLD input with an alternate clock
source. To drive Pin 128 from header J4, disconnect X5 from the circuit by removing R23.
Expansion Header Landings
The expansion header landings provide access to user GPIOs, primary inputs, clocks, and Bank 0/1 VCCO pins of
the ispMACH 4256V. The remaining pins serve as power supplies for external connections. Each landing is config-
ured as one 2 x 20 100 mil.
Table 2. Expansion Connector Reference
Item Description
Reference Designators J3, J4, J5, J6
Part Number header_2x20

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ispMACH 4256V Breakout Board Evaluation Kit
Table 3. Expansion Header Pin Information (J3)
Pin Number Function LC4256V Pin
1IO_C12 4
2GND n/a
3IO_C10 5
4GND n/a
5IO_C8 6
6GND n/a
7IO_C6 7
8GND n/a
9IO_C4 8
10 GND n/a
11 IO_C2 9
12 GND n/a
13 IO_D14 11
14 GND n/a
15 IO_D12 12
16 GND n/a
17 IO_D10 13
18 GND n/a
19 IO_D8 14
20 GND n/a
21 IO_D6 15
22 GND n/a
23 IO_D4 16
24 GND n/a
25 IO_IA1 17IN
26 GND n/a
27 IO_IA2 20IN
28 GND n/a
29 IO_E2 21
30 GND n/a
31 IO_E4 22
32 GND n/a
33 IO_E6 23
34 GND n/a
35 IO_E8 24
36 GND n/a
37 IO_E10 25
38 GND n/a
39 IO_E12 26
40 GND n/a

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ispMACH 4256V Breakout Board Evaluation Kit
Table 4. Expansion Header Pin Information (J4)
Pin Number Function LC4256V Pin
1IO_F2 28
2IO_A2 130
3IO_F4 29
4IO_A4 131
5IO_F6 30
6IO_A6 132
7IO_F8 31
8IO_A8 133
9IO_F10 32
10 IO_A10 134
11 IO_F12 33
12 IO_A12 135
13 IO_G12 39
14 IO_B2 138
15 IO_G10 40
16 IO_B4 139
17 IO_G8 41
18 IO_B6 140
19 IO_G6 42
20 IO_B8 141
21 IO_G4 43
22 IO_B10 142
23 IO_G2 44
24 IO_B12 143
25 IO_IA3 38IN
26 IO_IA5 144IN
27 IO_IA4 45IN
28 GND n/a
29 IO_H12 48
30 NC n/a
31 IO_H10 49
32 GND n/a
33 IO_H8 50
34 CLK1 54CLK
35 IO_H6 51
36 GND n/a
37 IO_H4 52
38 CLK0 128CLK
39 IO_H2 53
40 GND n/a

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ispMACH 4256V Breakout Board Evaluation Kit
Table 5. Expansion Header Pin Information (J5)
Pin Number Function LC4256V Pin
1IO_P2 125
2IO_M12 98
3IO_P4 124
4IO_M10 97
5IO_P6 123
6IO_M8 96
7IO_P8 122
8IO_M6 95
9IO_P10 121
10 IO_M4 94
11 IO_P12 120
12 IO_M2 93
13 IO_IB10 117IN
14 IO_IB8 92IN
15 IO_IB9 110IN
16 IO_IB7 89IN
17 IO_O2 116
18 IO_L4 88
19 IO_O4 115
20 IO_L6 87
21 IO_O6 114
22 IO_L8 86
23 IO_O8 113
24 IO_L10 85
25 IO_O10 112
26 IO_L12 84
27 IO_O12 111
28 IO_L14 83
29 IO_N12 105
30 IO_K2 81
31 IO_N10 104
32 IO_K4 80
33 IO_N8 103
34 IO_K6 79
35 IO_N6 102
36 IO_K8 78
37 IO_N4 101
38 IO_K10 77
39 IO_N2 100
40 IO_K12 76