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ORDERING INFORMATION

Type Order Designation Description Options

Evaluation Board iC-TW11 EVAL TW11_1C iC-TW11 Evaluation Board

Ready-to-operate, includes mini-USB cable

Optional

Software iC-TW11 GUI GUI software for Windows PC

Device readout and setup

For download link check www.ichaus.com/tw11

BOARD TW11_1C

Figure 1: Board image

Copyright © 2014 iC-Haus http://www.ichaus.com

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RELATED DOCUMENTS

• iC-TW11 documentation → http://www.ichaus.com/tw11

LAYOUT AND TERMINALS

Figure 2: Board image

Figure 3: Board layout

TERMINAL DESCRIPTION

P1 Mini-USB socket for PC connection

(for GUI communication and board supply with 5 V)

P4/P8 Daisy-chain connectors

GPIOx General purpose in/out for custom use

GND Ground (USB ground)

SAMPLE iC-TW11 pin: Triggers position conversion

(connected to MCU)

3.3V Voltage output used to indicate daisy-chaining

D_SENSE Sense input for daisy-chaining (pull-down)

IRQ_OUT iC-TW11 pin: Interrupt request from iC-TW11

(connected to MCU)

IRQ_IN iC-TW11 pin: Interrupt chain input

(connected to MCU)

xRST iC-TW11 pin: Active-low chip reset

(connected to MCU)

MISO SPI Master-In/Slave-Out of MCU

(connected to SO if not in daisy-mode)

SI iC-TW11 pin: SPI Slave-In (connected to MCU)

SO iC-TW11 pin: SPI Slave-Out

(connected to MISO if not in daisy-mode)

xSS iC-TW11 pin: Active-low SPI Slave-Select

(connected to MCU)

VBUS Board supply voltage (connected to USB 5 V)

SCLK iC-TW11 pin: SPI Clock (connected to MCU)

P3 Silabs MCU programming interface

C2D MCU programming interface: data

C2CK MCU programming interface: clock

P2 Supply voltages

V_CORE iC-TW11 pin: Core supply voltage (input)

V_IO iC-TW11 pin: I/O supply voltage (input)

P7 Test pins

TM0 iC-TW11 pin: Negative test pin channel 0

TP0 iC-TW11 pin: Positive test pin channel 0

TM1 iC-TW11 pin: Negative test pin channel 1

TP1 iC-TW11 pin: Positive test pin channel 1

LEDs

LED D2 "Power" (green) indicates 5 V on VBUS

LED D1 "SPI active" (red) indicates that the MCU is driving the

SPI interface (high-z if deactivated)

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CIRCUIT SCHEMATIC

Figure 4: Connections to the SiLabs C8051F320 MCU

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Figure 5: Connections to iC-TW11

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ASSEMBLY PART LIST

Reference Footprint Rate Manufacturer Part# Count

C1,C2 SMD0603 0.1uF 2

C3,C4 SMD0603 4.7uF 2

C5 SMD0603 100nF 1

C6 SMD0603 1uF 1

C7 SMD0603 100nF 1

C8 SMD0603 1uF 1

D1 SMD0805 Red Stanley BR1112H-TR 1

D2 SMD0805 Green Stanley BG1112H-TR 1

FB1 SMD0805 40Ohm Laird MI0805K400R-10 1

P1 USB_MINI_B USB_MINI_B TE Connectivity 1734035-2 1

R1,R2 SMD0603 0 2

R3,R4 SMD0603 1k 2

R5,R6 SMD0603 60 2

R7 SMD0603 10 1

R11 SMD0603 10k 1

R12 SMD0603 47k 1

U1 QFN16-4x4mm iC-TW11 iC-Haus iC-TW11* 1

U2 DRL_SN74LVC1G125 SN74LVC1G125 Texas Instruments SN74LVC1G125DBVR 1

U3 LQFP32 C8051F320 Silicon Laboratories C8051F320 1

*) The evaluation board is equipped with a iC-TW11 preliminary chip release C1. Advanced chip samples are

available for the evaluation of standby current consumption.

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GETTING STARTED

Step Description

Download GUI-Software For the evaluation software please check http://www.ichaus.de/TW11. The package

includes all files which are necessary for operation.

Install GUI-Software When download is finished, open the download folder and double click

"TW111SO_gui_XX/setup.exe". Follow the instructions on the screen.

Connect Demoboard Plug the mini-USB cable to the iC-TW11_1C mini-USB connector and find a free

USB slot on your Windows PC. The green "Power" LED will light up once the board is

powered.

Start GUI-Software Double click on the TW111SO_gui_XX.exe in your installation folder to start the GUI.

The red "SPI active" LED indicates that the MCU is driving the SPI interface now.

Start the Help system To help you interact with the GUI, there is a help system which teaches you about

the main features of the GUI software. You will find the help system in the menubar

"Help", as shown below.

Figure 6: Help system

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REVISION HISTORY

Rel Rel.Date Chapter Modification Page

A1 14-03-05 All Initial Release all

Rel Rel.Date Chapter Modification Page

A2 14-06-11 LAYOUT AND TERMINALS Description modified 2

ASSEMBLY PART LIST Note added on chip release 5

GETTING STARTED Description modified 6

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