Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsDev KitsPCB design board

Evaluates: SPI and SMBus/I

C-Compatible Parts

CMAXQUSB User’s Guide

For pricing, delivery, and ordering information, please contact Maxim Direct

at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

General Description

The Maxim Command Module (CMAXQUSB) receives

commands from an IBM PC through the USB to create

an SPI™ or SMBus™/I

C-compatible interface. Maxim

evaluation kits (EV kits) that make use of the

CMAXQUSB require custom software and can be

ordered together as an evaluation system (EV system).

Ordering information for EV systems is included in the

EV kit’s corresponding data sheet.

An EV system is an EV kit combined with an interface

board such as a CMAXQUSB and custom software.

Refer to the appropriate EV kit data sheet for quick start

and detailed operating instructions.

The use of the CMAXQUSB as a MAXQ2000 develop-

ment target is not supported. Rather, use the

MAXQ2000

EV kit

(available at www.maxim-ic.com/MAXQ2000-KIT)

for this purpose.

The CMAXQUSB has been tested on Windows

Second Edition, Windows 2000, and Windows XP

Features

o PC-Controlled I/O Platform

o USB Powered

o Provides 2.5V, 3.3V, or 5V to EV Kit

o SPI Bus: 8MHz Burst

o I

C/2-Wire Bus: Fast 400kHz/Standard 100kHz

o Optional 1.5kΩ I

C Bus Pullup Resistors

Component List

19-3838; Rev 2; 12/10

Ordering Information

PART PC INTERFACE

OPERATING SYSTEMS

SUPPORTED

CMAXQUSB+ USB Windows 98SE/2000/XP

DESIGNATION QTY DESCRIPTION

C1, C2, C3 3

22µF ±10%, 16V X5R ceramic

capacitors (1210)

TDK C3225X5R1C226K

C4 1

4.7µF ±10%, 10V X7R ceramic

capacitor (0805)

TDK C2012X5R1A475K

C5 1

0.033µF ±10%, 6.3V (min) X7R

ceramic capacitor (0603)

TDK C1608X7R1E333K

Murata GRM188R71E333K

Taiyo Yuden EMK107BJ333KA

C6, C7 2

22pF ±5% C0G ceramic capacitors

(0603)

TDK C1608C0G1H220J

Murata GRM1885C1H220J

C8, C9 2

10pF ±5% C0G ceramic capacitors

(0603)

Murata GRM1885C1H100J

TDK C1608C0G1H100J

C10–C16,

C23–C32

(on back of

board)

0.1µF ±10%, 10V (min) X7R ceramic

capacitors (0603)

TDK C1608X7R1E104K

DESIGNATION QTY DESCRIPTION

C17–C22

(on back of

board)

1µF, 6.3V (min) X7R ceramic

capacitors (0603)

TDK C1608X5R0J105K

Murata GRM188R60J105K

Taiyo Yuden JMK107BJ105MA

D1 1

100V, 1A bridge rectifier

(D-70/DIP-6)

Diodes Inc. DF005M

J2, J3,

JU2–JU5

0 Not installed, 2-pin headers

LED1, LED2 2

Red LEDs (T1-3/4)

Panasonic LN21RPH

LED3 1

Yellow (amber) LED (T1-3/4)

Panasonic LN41YPH

LED4 1

Green LED (T1-3/4)

Panasonic LN31GCPH

P2 1

USB type-B, right-angle PC-mount

receptacle

P3 1

20-pin (2 x 10) right-angle male

header

P4 1

40-pin (2 x 20) right-angle male

header

P5 (JTAG) 1

10-pin (2 x 5) vertical header,

keyed pin 7

SPI is a trademark of Motorola, Inc.

SMBus is a trademark of Intel Corp.

Windows and Windows XP are registered trademarks of

Microsoft Corp.

Denotes lead(Pb)-free and RoHS compliant.

Summary of content (16 pages)

PAGE 1
9-3838; Rev 2; 12/10 CMAXQUSB User’s Guide The Maxim Command Module (CMAXQUSB) receives commands from an IBM PC through the USB to create an SPI™ or SMBus™/I2C-compatible interface. Maxim evaluation kits (EV kits) that make use of the CMAXQUSB require custom software and can be ordered together as an evaluation system (EV system). Ordering information for EV systems is included in the EV kit’s corresponding data sheet.
PAGE 2
Evaluates: SPI and SMBus/I2C-Compatible Parts CMAXQUSB User’s Guide Component List (continued) DESIGNATION QTY P1 0 Not installed (2mm power jack) P6 1 3-pin header P7 1 4-pin header P8 1 6-pin header R1 1 2.
PAGE 3
CMAXQUSB User’s Guide SUPPLIER PHONE WEBSITE Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com Panasonic Corp. 800-344-2112 www.panasonic.com Suntsu Frequency Control 949-305-0220 www.suntsuinc.com Taiyo Yuden 800-348-2496 www.t-yuden.com TDK Corp. 847-803-6100 www.component.tdk.com Note: Indicate that you are using the CMAXQUSB or MAXQ2000 when contacting these component suppliers.
PAGE 4
Evaluates: SPI and SMBus/I2C-Compatible Parts CMAXQUSB User’s Guide Connectors P3 and P4 are designed to allow hardware compatibility with previous Maxim EV kit module designs. Headers P7 and P8 allow convenient probing of SMBus/I2C and SPI bus signals. Connector P5 is used during factory test to program the MAXQ2000 in-circuit using the JTAG interface. The connector pinout is compatible with the MAXQ2000 EV kit’s MAXQ-JTAG-001 board.
PAGE 5
CMAXQUSB User’s Guide Connector P4 Connector P4 is a 40-pin, dual-row header that connects to SPI and 8-bit parallel kits. The pinout is compatible with Maxim’s previous SPI solution, the 68HC16MODULE board. See Table 2. GPIO pins K1–K8 and K1’–K15’ must be driven with a 4.7kΩ or lower impedance source to turn around the bidirectional level translators. If designing a custom EV kit board, beware: the ground return system does not connect pin 20. Table 1.
PAGE 6
Evaluates: SPI and SMBus/I2C-Compatible Parts CMAXQUSB User’s Guide Table 2.
PAGE 7
CMAXQUSB User’s Guide For convenience, the SMBus/I2C interface signals are connected to labeled pins on header P7. See Table 5. Table 5. Connector P7 Description P7 PIN LABEL FUNCTION 1 VDD VDD Power Supply 2 SDA SMBus/I2C SDA (Data) 3 GND Ground Return 4 SCL SMBus/I2C SCL (Clock) Connector P8: SPI Test Points Detailed Description of Firmware The CMAXQUSB firmware was developed using the MAX-IDE assembly language development environment. Full source code is available at www.maxim-ic.
PAGE 8
SEG25/P3.1 P4.1/TDI/INT9 P4.2/TMS P4.3/TDO P4.0/TCK/INT8 U1P40 U1P41 U1P42 U1P43 Figure 1a. CMAXQUSB Schematic (Sheet 1 of 4) 8 VDDIO HFXIN C24 0.1µF C9 10pF 27 51 Y1 16MHz 32KOUT 29 30 31 32 33 COM0 26 SEG35/COM1 25 SEG33/COM3 SEG32 SEG34/COM2 24 23 22 GND GND SEG31/P3.7/INT7 SEG26/P3.2 SEG27/P3.3 RESET SEG24/P3.0 SEG23/P2.7 VDDIO VDDIO HFXOUT P6.5/TO/WKOUT P6.4/TOB/WKOUT P6.3/T2/OW_IN P6.2/T2B/OW_OUT P6.1/T1/INT13 P6.0/T1B/INT12 P5.7/MISO P5.6/SCLK P5.5/MOSI P5.4/SS P5.
PAGE 9
R1 2.2kΩ EEDATA 4 3 1 2 R14 10kΩ D0 DI CS CLK C3 22µF 5 GND U4 93C46 C7 22pF C6 22pF NC NC VCC EEDATA 7 6 8 R2 1.5kΩ USBVCC R13 27Ω R12 27Ω C5 0.033µF 6 27 5 4 8 7 C16 0.1µF 29 TEST AGND EECS EESK EEDATA XTOUT XTIN RESET RSTOUT USBDM USBDP 3V3OUT AVVC 30 USBVCC 31 1 2 32 28 Y2 6MHz C12 0.1µF R7 470Ω 9 GND GND VCC 26 C14 0.1µF 17 U2 FT232BM VCC 3 C13 0.
PAGE 10
Figure 1c. CMAXQUSB Schematic (Sheet 3 of 4) U1P56 U1P55 U1P54 U1P57 U1P20 U1P25 U1P24 U1P23 U1P22 U1P21 U1P26 U1P62 U1P63 VDDIO VDDIO VDDIO JU2 7 3 4 5 6 2 1 10 9 4 5 6 7 8 3 2 1 C20 1µF GND OVL1 IVL2 IVL3 IVL4 N.C. VL EN I/OVL8 I/OVL2 I/OVL3 I/OVL4 I/OVL5 I/OVL6 I/OVL7 VL I/OVL1 VDD IVCC1 OVCC2 OVCC3 OVCC4 N.C. VCC GND I/OVCC2 I/OVCC3 I/OVCC4 I/OVCC5 I/OVCC6 I/OVCC7 I/OVCC8 VCC I/OVCC1 TRI-STATE MAX3390 U10 MAX3001 U6 C25 0.
PAGE 11
1 P3-17 P4-30 VDD +3.3V JU1-5 JU1-3 JU1-1 JU1-6 JU1-4 JU1-2 JU1 2 x 3 HEADER P3-20 - - 4 6 +2.
PAGE 12
Evaluates: SPI and SMBus/I2C-Compatible Parts CMAXQUSB User’s Guide Figure 2.
PAGE 13
CMAXQUSB User’s Guide Evaluates: SPI and SMBus/I2C-Compatible Parts Figure 3.
PAGE 14
Evaluates: SPI and SMBus/I2C-Compatible Parts CMAXQUSB User’s Guide Figure 4.
PAGE 15
CMAXQUSB User’s Guide Evaluates: SPI and SMBus/I2C-Compatible Parts Figure 5.
PAGE 16
Evaluates: SPI and SMBus/I2C-Compatible Parts CMAXQUSB User’s Guide Revision History REVISION NUMBER REVISION DATE 2 12/10 DESCRIPTION Updated Y3 in Component List and Figure 1a PAGES CHANGED 2, 8 Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.