19-0696; Rev 0; 12/06
MAX3420E Evaluation Kit-2
General Description
The MAX3420E evaluation kit-2 (EV kit-2) provides a
proven design to evaluate the MAX3420E USB peri-
pheral controller with SPI™ interface. The EV kit-2
board is jumper-connected to an Atmel
®
ATtiny2313
microcontroller by default, but can also be connected
to any SPI master. The MAX3420E EV kit-2 adds USB
functionality to any microcontroller, microprocessor,
DSP, CPLD, FPGA, or ASIC with an SPI master inter-
face or five GPIO lines can connect to the MAX3420E
EV kit-2.
The EV kit-2 board comes with the MAX3420EECJ+
installed.
o
o
o
o
o
o
o
o
o
Features
Complies with USB 2.0 (Full Speed)
Custom USB Drivers Not Required
USB Powered
USB Power LED Indicator
USB Cable Included
On-Board ATtiny2313 Microcontroller
Four GPI Port-Connected Pushbuttons
Four GPO Port LED Indicators
20-Pin Signal Header to Connect the MAX3420E
to Any Microcontroller
o
Proven PCB Layout
o
Fully Assembled and Tested
Evaluates: MAX3420E
Component Suppliers
SUPPLIER
Murata
TDK
PHONE
770-436-1300
847-803-6100
WEBSITE
www.murata.com
www.component.tdk.com
Ordering Information
PART NUMBER
MAX3420EEVKIT-2+
TYPE
EV kit
PC INTERFACE
USB
Note:
Indicate that you are using the MAX3420E when contacting
these component suppliers.
+Denotes
a lead-free and RoHS-compliant EV kit.
Component List
DESIGNATION
QTY
DESCRIPTION
2.2µF ±20%, 6.3V X5R ceramic
capacitors (0603)
TDK C1608X5R0J225K or
C1608X5R0J225M
1µF ±20%, 6.3V X5R ceramic
capacitors (0603)
TDK C1608X5R0J105K or
C1608X5R0J105M
18pF ±5%, 50V C0G ceramic
capacitors (0402)
Murata GRM1555C1H180J
TDK C1005C0G1H180J
Green LEDs (0603)
Stanley Electric BG1111C-TR
Panasonic LNJ314G8TRA or
LNJ308G84RA
Red LED (0603)
Panasonic LNJ208R8ARA
Dual-row, 20-pin (2 x 10) header
Single-row, 8-pin header
Dual-row, 6-pin (2 x 3) header
U1
1
DESIGNATION
JU1–JU5,
JU10, JU11
JU6–JU9
P1
R1, R2
R3, R6–R9
R4, R5
SW1–SW4
TP1, TP2, TP3
QTY
7
4
1
2
5
2
4
3
DESCRIPTION
3-pin headers
2-pin headers
USB type B right-angle receptacle
Assmann AU-Y1007-R
33.2Ω ±1% resistors (0603)
(use lead-free parts only)
150Ω ±5% resistors (0603)
(use lead-free parts only)
10kΩ ±5% resistors (0603)
(use lead-free parts only)
Pushbutton switches
Panasonic EQV-PHP03T
Mini test points (black)
Keystone Electronics 5001
MAX3420EECJ+ USB
peripheral controller
(32-pin, 7mm x 7mm x 1.4mm,
TQFP)
C1, C7
2
C2, C3, C6, C8
4
C4, C5
2
D1–D4
4
D5
H1
H2
H3
1
1
1
1
SPI is a trademark of Motorola, Inc.
Atmel is a registered trademark of Atmel Corp.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
MAX3420E Evaluation Kit-2
Evaluates: MAX3420E
Component List (continued)
DESIGNATION
U2
QTY
1
DESCRIPTION
MAX6349TLUT+ (SOT23-6)
Topmark AAJQ
20MHz 8-bit RISC microcontroller
Atmel ATtiny2313-20SU
(20-pin SOIC)
DESIGNATION
Y1
—
—
—
QTY
1
11
4
1
DESCRIPTION
12MHz crystal; 18pF load
(HCM49 SMD case)
Citizen HCM49-12.000MABJ-UT
Shunts
Rubber bumps
MAX3420EEVKIT-2+ PCB
U3
1
Quick Start
Recommended Equipment
• MAX3420 EV kit-2 (USB cable included)
• A user-supplied Windows
®
2000/XP PC with spare
USB port
Note:
In the following sections, software-related items
are identified by bolding. Text in
bold
refers to items
directly from the EV kit software. Text in
bold and
underlined
refers to items from the Windows 2000/XP
operating system.
Procedure
The MAX3420E EV kit-2 is fully assembled and tested.
Follow the steps below to verify board operation.
1) Verify that all jumpers (JU1–JU11) are in the default
1-2 position.
2) Connect the included USB cable from the PC’s
USB port (Type A) to the USB connector (Type B)
on the MAX3420E EV kit-2 board.
3) Verify that the red USB power LED (D5) lights up.
4) Verify that the green port 0 LED (D1) blinks.
5)
A Found New Hardware | Demo
window appears
after plugging in the USB cable for the first time
(Figure 1). Windows 2000 or higher is required.
6) Next, a
Found New Hardware | USB Human
Interface Device
appears, as shown in Figure 2.
The standard Windows USB HID driver is installed
automatically.
7) Open WordPad by clicking on the WordPad icon
located at
Start | Programs | Accessories |
WordPad. Caution:
Make sure that WordPad or a
similar editor (e.g., Notepad) is the active window
before performing the next step (the demonstration
program types text into whatever window is open).
8) Press the port 3 pushbutton switch (SW4) to start
the HID keyboard emulator.
9) Verify that the HID keyboard emulator automatically
writes text into the active WordPad editor.
10) Stop the HID keyboard emulator by pressing the
port 3 pushbutton switch (SW4) again. The port 3
pushbutton starts and stops the emulator.
Figure 1. Found New Hardware | Demo Window
Windows is a registered trademark of Microsoft Corp.
2
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MAX3420E Evaluation Kit-2
Evaluates: MAX3420E
Figure 2. Found New Hardware | USB Human Interface Device Window
Detailed Description of Hardware
Tables 1 and 2 describe the function of each pushbutton
and LED during the HID keyboard emulator demo.
Tables 3 through 6 explain the functionality of each
jumper on the MAX3420E EV kit-2.
Tables 7 through 9 give the pin descriptions for headers
H1, H2, and H3. H2 is a header consisting of SPI test
points. H3 is a header designed to be connected to
one of two Atmel tools. The JTAGICE-2 can connect to
this header to load and debug ATtiny2313 code using
the AVR Studio® software, available on the Atmel web-
site. Additionally, an AVRISP-2 can be connected to
program any hex file into the ATtiny2313. Refer to the
Atmel documentation for further details.
The example firmware code for the HID keyboard emula-
tor may be downloaded at www.maxim-ic.com/evkitsoft-
ware. Double click the MAX3420E EVKIT Firmware link.
Table 1. Pushbutton Descriptions for HID Keyboard Emulator Demo
PORT
0
1
2
3
PUSHBUTTON
SW1
SW2
SW3
SW4
Not used
Not used
Not used
Starts and stops sending characters as keyboard
DESCRIPTION
Table 2. LED Descriptions for HID Keyboard Emulator Demo
PORT
0
1
2
3
LED
D1
D2
D3
D4
Blinks to show program is running
MAX3420E detected a USB bus reset
SUSPEND (PC stopped USB activity)
SEND light (toggles when the pushbutton on GPO port 3 (SW4) is pressed)
DESCRIPTION
AVR Studio is a registered trademark of Atmel Corp.
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3
MAX3420E Evaluation Kit-2
Evaluates: MAX3420E
Table 3. SPI Bus Selection (JU1–JU5)
JUMPER
JU1
JU2
JU3
JU4
JU5
SHUNT POSITION
1-2*
2-3
1-2*
2-3
1-2*
2-3
1-2*
2-3
1-2*
2-3
INT line connected to H1-2
SS
line connected to the ATtiny2313
SS
line
SS
line connected to H1-6
MOSI line connected to the ATtiny2313 MOSI line
MOSI line connected to H1-4
MISO line connected to the ATtiny2313 MISO line
MISO line connected to H1-3
SCLK line connected to the ATtiny2313 SCLK line
SCLK line connected to H1-5
DESCRIPTION
INT line connected to the ATtiny2313 INT line
*Default position.
Table 4. GPO 0–3 LED Connection (JU6–JU9)
JUMPER
JU6
JU7
JU8
JU9
SHUNT POSITION
1-2*
Open
1-2*
Open
1-2*
Open
1-2*
Open
GPO port 3 LED (D4) connected
GPO port 3 LED (D4) disconnected
GPO port 2 LED (D3) connected
GPO port 2 LED (D3) disconnected
GPO port 1 LED (D2) connected
GPO port 1 LED (D2) disconnected
GPO port 0 LED (D1) connected
GPO port 0 LED (D1) disconnected
DESCRIPTION
*Default position.
Table 5. V
L
Logic-Supply Selection (V
L
)
JUMPER
JU10
SHUNT POSITION
1-2*
2-3
Open
Logic-supply voltage (V
L
= 3.3V)
Do not use
Apply V
L
supply on H1-9
DESCRIPTION
*Default position.
Table 6. Power-Supply Source Selection
JUMPER
JU11
SHUNT POSITION
1-2*
2-3
Open
EV kit-2 board powered by USB
Do not use
Apply 5V supply on JU11-2 and GND on JU11-3
DESCRIPTION
*Default position.
4
_______________________________________________________________________________________
MAX3420E Evaluation Kit-2
Evaluates: MAX3420E
Table 7. Header H1 Pin Description
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
NAME
GPX
CONINT
CONMISO
CONMOSI
CONSCLK
CONSS
GPO3
RES
V
L
GPO2
GND
GND
GPO0
GPO1
GPI2
GPI3
GPI0
GPI1
3.3V
GND
GPX line
Interrupt (INT) Line (Note 1)
Master In Slave Out (MISO) Line (Note 2)
Master Out Slave In (MOSI) Line (Note 3)
Serial Clock (SCLK) Line (Note 4)
Active-Low Slave Select (SS) Line (Note 5)
General-Purpose Output 3 (Note 6)
Active-Low Reset Line
Logic-Voltage-Supply Line
General-Purpose Output 2 (Note 6)
Ground
Ground
General-Purpose Output 0 (Note 6)
General-Purpose Output 1 (Note 6)
General-Purpose Input 2 (Note 7)
General-Purpose Input 3 (Note 7)
General-Purpose Input 0 (Note 7)
General-Purpose Input 1 (Note 7)
3.3V EV Kit-2 Board Supply
Ground
DESCRIPTION
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
If jumper JU1 is in the 2-3 position.
If jumper JU4 is in the 2-3 position.
If jumper JU3 is in the 2-3 position.
If jumper JU5 is in the 2-3 position.
If jumper JU2 is in the 2-3 position.
Also connected to an LED through a current-limiting resistor if the respective jumper is in place.
General-purpose inputs are internally pulled up to VL, so external pullups are not required.
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