Code Mercenaries IOW24-DG User manual

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1. Features

• USB interface

• USB V1.1/2.0 low speed device

• 100 kHz I2C (IIC / TWI) master

• Throughput up to 750 byte/s

• Based on IO-Warrior24

• Supports clock stretching

• Programmable timeout

• Supports Sensirion sensor protocol

• 5 V and 3.3 V available for external circuit

• Uses standard system drivers

• Standard form factor, no blocked ports

1.1 Variants

The standard IOW24-DG is shipped as a kit contai­ning an assembled and tested PCB, a two part
dongle case, and a four wire cable to solder to the
dongle as required for the target application.

1.2 Custom variants

OEM versions with specialized cables or custom
modifications are possible

2. Functional overview

IOW24-DG packages a standard IO-Warrior24 in a
small form factor dongle case with a 3.3 V voltage
regulator.
The I2C signals of the IO-Warrior24 are made
available externally through solder pads to allow
application specific cabling to be attached. All soft­ware and tools for IO-Warrior24 are also usable for
the dongle.
The I2C interface works as a bus master and sup­ports clock stretching handshake. A timeout can be
programmed to avoid hanging due to misbehaving
slaves.
For compatibility with low voltage slaves the inter­nal pull up resistors of IOW24 can be switched off
by software command.
In addition to the standard I2C protocol the deriva­tive protocol used by Sensirion to talk to their hu­midity sensors is also supported.

3. Connecting the cable

The function of the signals is marked on the board
next to the solder pads for the cable:

3.3 3.3V output, max. 50mA
+5 5V from USB, max. 100mA

-Ground
DA I2C SDA signal
CL I2C SCL signal

Solder the cable to the pads as required for your
application.
The 5V and 3.3V supplies are meant to be used ex­clusive of each other. If both are used at the same
time the combined current may not exceed 100mA.

Dongle shown from both sides.

V1.0.0 September 8th 2009

USB to I2C Dongle
based on IO-Warrior24

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3.1 Compatibility with 3.3 V slaves

If a 3.3V slave is to be connected the internal pull
up resistors of the IOW24 should be switched off
by software on enabling the I2C function.
This requires external pull up resistors which may
be added either on the slave side or soldered to the
lower side of the dongle PCB. It is recommended
to add protection diodes so the slave does not see
5V on the signal lines before the I2C function of
the IO-Warrior24 is initialized.
There are landing pads for four components on the
lower side of the dongle PCB, the outer ones are
intended for pull up resistors, the inner ones for
protection diodes. The pads facing the end of the
board connect to 3.3 V.
Protection diodes must connect to 3.3 V with their
cathodes. MELF packages are not recommended
since they are too thick to fit in the dongle case

4. Software/Programming support

The IO-Warrior SDK is used with the dongle. The
SDK, additional software, and the data sheet for
the IO-Warrior is available on our website.

5. FCC / CE

The IOW24-DG is sold as kit. As such it can not be
FCC or CE approved.
Code Mercenaries has excerted greatest care in
designing this module to minimize RF emission
and assure stable operation. Though the use of
proper cable materials and correct integration into
a device is crucial to assure product safety and
interference free operation.
The integrator who assembles the module into a
device has to take care for appropriate testing and
safety measures.

6. Ordering information

The standard packaging for IOW24-DG is a blister
pack containing the parts for one unit.
The order code is:
IOW24-DG

Legal Stuff

This document is ©1999-2009 by Code
Mercenaries.

The information contained herein is subject to
change without notice. Code Mercenaries makes
no claims as to the completeness or correctness of
the information contained in this document.

Code Mercenaries assumes no responsibility for
the use of any circuitry other than circuitry
embodied in a Code Mercenaries product. Nor
does it convey or imply any license under patent or
other rights.

Code Mercenaries products may not be used in any
medical apparatus or other technical products that
are critical for the functioning of lifesaving or
supporting systems. We define these systems as
such that in the case of failure may lead to the
death or injury of a person. Incorporation in such a
system requires the explicit written permission of
the president of Code Mercenaries.

Trademarks used in this document are properties of
their respective owners.

Code Mercenaries
Hard- und Software GmbH
Karl-Marx-Str. 147a
12529 Schönefeld OT Grossziethen
Germany
Tel: x49-3379-20509-20
Fax: x49-3379-20509-30
Mail: [e-mail]
Web: www.codemercs.com

HRB 9868 CB
Geschäftsführer: Guido Körber, Christian Lucht

V1.0.0 September 8th 2009

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1.0 Features

• USB interface

• USB V1.1/2.0 compliant low speed device

• USB HID 1.1 compliant

• 32 general purpose I/O pins on IOW40
16 general purpose I/O pins on IOW24

• Supports IIC compatible devices

• Supports HD44780 compatible display modules
and several graphic display modules

• Supports SPI slave devices up to 2MBit/sec
(IOW24)

• Supports receiving RC5 IR remote control data
(IOW24)

• Drives LED matrix up to 8x32 with few
external shift registers

• Supports 8x8 or 16x8 switch or key matrix
(IOW40)

• Two 24 bit capture timers with 4sec resolution
(IOW24)

• Easy to use starter kit

• Software support for Mac, Linux, and Windows

• No USB knowledge necessary to use

• Single +5V power supply

• Available SSOP48 package and DIL40 module
(replacing PDIP40 package), or DIL24 and
SOIC24.

1.1 Variants

IO-Warrior is available in several variants. The
IOW24PowerVampire and the IO-Warrior56 are
covered by separate data sheets.
Custom modifications are possible.

IO-Warrior24

• 16 general purpose I/O pins, typ. 125Hz read

• IIC master, typ. 750 bytes/sec throughput

• Alphanumeric and graphic display support

• RC5 IR remote control receiver

• Hardware SPI master interface up to 2Mbit/sec
bitrate, typ. 750 bytes/sec throughput

• LED matrix with up to 8x32 LEDs with the
support of external register/drivers

• Two 24 bit capture timers with 4sec resolution

• Minimal external component count

• Identifies as either low power (100mA) or high
power (500mA) bus powered device. Pin
selectable

• Easy to use starter kit for immediate access

• DIL24 or SOIC24 package

IO-Warrior40

• 32 general purpose I/O pins, typ. 125Hz read

• IIC master, typ. 750 bytes/sec throughput

• Alphanumeric and graphic display support

• LED matrix with up to 8x32 LEDs with the
support of external register/drivers

• 8x8 or 16x8 switch or key matrix

• Minimal external component count

• Identifies as either low power (100mA) or high
power (500mA) bus powered device. Pin
selectable

• Easy to use starter kit for immediate access.

• SSOP48 package or DIL40 module (replacing
PDIP40 package)

1.2 Custom variants

Custom adaptions are available on request. If
necessary complex functions can be added to the
standard chips to directly control specific circuits.

2.0 Functional overview

IO-Warrior offers a simple access to the USB.
Many projects that formerly used the parallel port
or some other kind of direct I/O interface today
face the problem that getting simple things to work
on the USB is quite complex.
With a serial or parallel port you needed only a
simple circuit to control an external relay or read a
single switch. With USB you need a
microcontroller that handles all the protocol work
to do the same thing. Several standard commands
need to be supported to get a device accepted as a
USB device, let alone implementing any real
function.
IO-Warrior brings simplicity to the USB. The
protocol is encapsulated in the IO-Warrior Chip.
You only have to care about the 16 or 32 I/O pins
and have to write only a few simple lines of code
to access them.
IO-Warrior also supports a range of industrial
standard interfaces to simplify interfacing to
certain chips or modules. These interfaces are
handled internally in IO-Warrior removing the
bandwith wasting controlling of individual pins.

V 1.1.0, December 2nd 2013, for chip revision V1.0.3.0 and up

Generic universal I/O Controller
for USB

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Content

1.0 Features 1

1.1 Variants 1

1.2 Custom variants 1

2.0 Functional overview 1

2.1 Product selection matrix 3

3.0 Pin Configurations 5

4.0 Pin Descriptions IO-Warrior40 8

4.1 Pin Descriptions IO-Warrior24 8

4.2 Pin descriptions 9

4.3 Special mode pin functions 9

4.3.1 IIC Mode pins 10

4.3.2 LCD Mode pins 10

4.3.3 SPI Mode Pins (IOW24 only) 10

4.3.4 RC5 Mode Pins (IOW24 only) 10

4.3.5 LED Matrix Mode Pins 11

4.3.6 Switch Matrix Mode Pins (IOW40 only) 11

4.3.7 Capture Timer Mode Pins (IOW24 only) 11

5.0 Device Operation 12

5.1 Accessing IO-Warrior 12

5.2 IO-Warrior communication 12

5.3 IO-Warrior input behaviour 12

5.5 IO-Warrior output behaviour 12

5.6 Using pins as inputs or outputs 12

5.7 Power supply 13

5.8 Suspend 13

5.9 Remote Wakeup 13

5.10 Special mode I/O 14

5.10.1 IIC Special mode function 14

5.10.2 LCD Special mode function 16

5.10.3 SPI Special mode function (IOW24 only) 17

5.10.4 Getting current pin status 18

5.10.5 Receiving RC5 IR codes (IOW24 only) 18

5.10.6 Driving LED matrix 18

5.10.7 Switch Matrix Mode (IOW40 only) 19

5.10.8 Capture Timers (IOW24  V1.0.3.0 only) 20

7.1 Packaging info 24

7.2 USB VendorID and ProductID 24

7.3 Serial numbers 24

7.4 Currently shipping versions 24

8.2 Warning about USB cables 27

8.3 Jumpers on the IOW40 Starter Kit 27

8.3.1 Jumpers on the IOW24 Starter Kit 27

8.4 Adding custom circuits 27

8.5 Example circuits 27

8.5.1 Drivers 27

8.5.2 Isolating inputs 28

8.5.3 Protecting inputs and outputs 28

8.5.4 Using the LCD function 28

9.0 Package Dimensions 30

10.0 ESD Considerations 32

10.1 EMC Considerations 32

11.0 Revision History 33

12.0 Legal Stuff 34

V 1.1.0, December 2nd 2013, for chip revision V1.0.3.0 and up

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2.1 Product selection matrix

2.2 Starter Kits

With the IO-Warrior Starter Kits you can make your first steps with IO-Warrior40 or IO-Warrior24
easily. A couple elements on the kit allow first experiments with inputs and outputs, the bread board area
provides space to test your individual circuit. There are separate starter kits for IOW40 and IOW24.
The starter kits are sold unassembled. A couple minutes soldering will provide you with a working unit.

2.2.1The IO-Warrior40 Starter Kit

The IOW40KIT for IO-Warrior40 provides eight LEDs and a button that can be used for first
experiements. The starter kit is sold unassembled.
Assembled the starter kit for IO-Warrior40 looks similar to this:

Actual components supplied with the kit may vary from those shown here.

Type

IO-Warrior40
IO-Warrior24

I/O Pins

LCD

32
16




IO-Warrior24PV
IO-Warrior56

12
50 

IIC SPI




RC5 IR Keys









LEDs Timer




DIL40 SSOP48





DIL24 SOIC24



Starter Kit








V 1.1.0, December 2nd 2013, for chip revision V1.0.3.0 and up

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2.2.2 The IO-Warrior24 Starter Kit

The IOW24KIT for IO-Warrior24 provides a LED, an IR receiver, and the circuit and connector to
directly connect a LCD module.
The starter kit is sold unassembled.
Assembled the starter kit for IO-Warrior24 looks similar to this:

Actual components supplied with the kit may vary from those shown here.

V 1.1.0, December 2nd 2013, for chip revision V1.0.3.0 and up

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3.0 Pin Configurations

IO-Warrior40-MOD

DIL40 Module

All drawings: TOP VIEW!

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21

DDDD++

++

DDDD--

--

PPPP3333....7777////YYYY77

77

PPPP3333....6666////YYYY66

66

PPPP3333....5555////YYYY5

5

55

PPPP3333....4444////YYYY44

44

PPPP3333....2222////YYYY22

22

PPPP3333....1111////YYYY11

11

PPPP3333....00

00////YYYY0000

PPPP2222....7777////XXXX77

77

PPPP2222....6666////XXXX66

66

PPPP2222....5555////XXXX55

55

PP

P

P2222....4444////XXXX4444

PPPP2222....3333////XXXX33

33

PPPP2222....2222////XXXX22

22

PPPP2222....1111//

//

XXXX11

11

PPPP2222....0000////XXXX00

00

LLLLCCCCDDDD----DDDDBBBB7777////PPPP1111....7777////XXXX111155

55

P

PPP1111....6666////LLLLCCCCDDDD----DDDDBBBB6666////XXXX111144

44

LLLLCCCCDDDD----DDDDBBBB5555////PPPP11

11....5555////XXXX11113333

PPPP1111....4444////LLLLCCCCDDDD----DDDDBBBB4444////XXXX111122

22

LLLLCCCCDD

D

D----DDDDBBBB3333////PPPP1111....3333////XXXX11111111

PPPP1111....2222////LLLLCCCCDDDD----DDDDBBBB2222////XXXX111100

00

LLLLCCCCDDDD----DDDDBBBB1111////PPPP1111....1111////XXXX99

99

PPPP1111....0000////LLLLC

CCCDDDD----DDDDBBBB0000////XXXX88

88

IIIIIIIICCCC----SSSSDDDDAAAA////PPPP0000....77

77

PPPP0000....6666//

//

IIIIIIIICCCC----SSSSCCCCLL

LL

LLLLCCCCDDDD----EEEE////PPPP0000....55

55

PPPP0000....4444////LLLLCCCCDDDD--

-

-RRRR////WWWW

LLLLCCCCDDDD----RRRRSSSS////PPPP0000....33

33

PPPP0000....2222////LLLLCCCCDDDD----////OO

OO

nn

nn

PPPP0000....11

11

PPPP0000....00

00

PPPPuuuullllllllTTTTooooGGGGNNNNDD

DD

GGGGNNNNDD

DD

XXXXIIIInn

nn

XXXXOO

OO

uuuutt

tt

GGGGNNNNDD

DD

VVVVcccccc

cc

PPPP3333....3333////YYYY33

33

V 1.1.0, December 2nd 2013, for chip revision V1.0.3.0 and up

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IO-Warrior 40-S

SSOP48

All drawings: TOP VIEW!

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
2524

23

22

21

DDDD++

++

DDDD--

--

PPPP3333....7777////XXXX77

77

PPPP3333....6666////YYYY66

66

PPPP3333....5555////XX

X

X5555

PPPP3333....4444////YYYY44

44

PPPP3333....2222////YYYY22

22

PPPP3333....1111////XXXX11

11

PPPP3333..

..

0000YYYY00

00

NNNNCC

CC

NNNNCC

CC

NNNNCC

CC

NNNNCC

CC

NNNNCC

CC

NNNNCC

CC

NNNNCC

CC

NNNNCC

CC

LLLLCCCCDDDD----DDDDBBBB7

777////PPPP1111....7777////XXXX111155

55

PPPP1111....6666////LLLLCCCCDDDD----DDDDBBBB6666////XXXX111144

44

LLLLCCCCDDDD----DDDDBBBB5555////PPPP1111....5555////XXXX111133

33

PPPP1111....4444////LLLLCCCCDDDD--

-

-DDDDBBBB4444////XXXX11112222

LLLLCCCCDDDD----DDDDBBBB3333////PPPP1111....3333////XXXX111111

11

PPPP11

11

....2222////LLLLCCCCDDDD----DDDDBBBB2222////XXXX111100

00

LLLLCCCCDDDD----DDDDBBBB1111////PPPP1111....1

111////XXXX99

99

PPPP1111....0000////LLLLCCCCDDDD----DDDDBBBB0000////XXXX88

88

IIIIIIIICCCC----SSSSDDDDAA

AA

////PPPP0000....77

77

PPPP0000....6666////IIIIIIIICCCC----SSSSCCCCLL

LL

LLLLCCCCDDDD----EEEE////PPPP0000..

.

.5555

PPPP0000....4444////LLLLCCCCDDDD----RRRR////WW

WW

LLLLCCCCDDDD----RRRRSSSS////PPPP0000....33

33

PP

PP

0000....2222////LLLLCCCCDDDD----////OOOOnn

nn

PPPP0000....11

11

PPPP0000....00

00

PPPPuuuullllllllTTTTooooGG

G

GNNNNDDDD

GGGGNNNNDD

DD

XXXXIIIInn

nn

XXXXOOOOuuuutt

tt

GGGGNNNNDD

DD

VVVVcccccc

cc

41

42

43

44

45

46

47

48

PPPP3333....3333////XXXX33

33

PPPP2222....7777////XXXX77

77

PPPP2222....6666////XXXX66

66

PPPP2222....55

5

5////XXXX5555

PPPP2222....4444////XXXX44

44

PPPP2222....3333////XXXX33

33

PPPP2222....2222////XXXX22

22

PP

PP

2222....0000////XXXX00

00

PPPP2222....1111////XXXX11

11

V 1.1.0, December 2nd 2013, for chip revision V1.0.3.0 and up

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IO-Warrior 24-P/-S

DIL24 / SOIC24

All drawings: TOP VIEW!

1
2
3
4
5
6
7
8
9
10
11
12 13

14

15

16

17

18

19

20

PPPP0000....0000////RRRRxxxxDDDD////CCCCAAAAPPPPAA

AA

IIIIIIIICCCC----SSSSCCCCLLLL////PPPP0000....11

11

////CCCCAAAAPPPPBB

BB

IIIIIIIICCCC----SSSSDDDDAAAA////PPPP0000....22

22

PPPP0000....6666////SSSSPPPPIIII--

--

MMMMIIIISSSSOOOO////LLLLCCCCDDDD----RRRR////WW

WW

SSSSPPPPIIII----DDDDRRRRDDDDYYYY////PPPP0000....33

33

LL

L

LCCCCDDDD----DDDDBBBB0000////PPPP1111....0000

LLLLCCCCDDDD----DDDDBBBB4444////PPPP1111....44

44

PPPP11

11....1111////LLLLCCCCDDDD----DDDDBBBB1111

LLLLCCCCDDDD----DDDDBBBB2222////PPPP1111....22

22

PPPP1111....3

333////LLLLCCCCDDDD----DDDDBBBB33

33

GGGGNNNNDD

DD

DDDD++

++

PPPPuuuullllllllTTTTooooGGGGNNNNDD

DD

DDDD--

--

VV

VV

rrrreeeegg

gg

VVVVcccccc

cc

PPPPoooowwwweeeerr

rr

NNNNCC

CC

PPPP0000....5555////SSSSPPPPIIII----MMMMOOOOSSSSII

I

I////LLLLCCCCDDDD----RRRRSSSS

PPPP0000....4444////SSSSPPPPIIII----SSSSSSSS////LLLLCCCCDDDD----////OOOOn

n

nn

21

22

23

24

LLLLCCCCDDDD----DDDDBBBB6666////PPPP1111....66

66

PPPP1111....7777////LLLLCCCCDDDD----DDDDBBBB77

77

PP

P

P0000....7777////SSSSPPPPIIII----SSSSCCCCKKKK////LLLLCCCCDDDD----EEEE

PPPP1111....5555////LLLLCCCCDDDD-

---DDDDBBBB55

55

V 1.1.0, December 2nd 2013, for chip revision V1.0.3.0 and up

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4.0 Pin Descriptions IO-Warrior40

4.1 Pin Descriptions IO-Warrior24

Name

I/O

Type

Pins (DIL40)

Description

D+, D-

P0.0, P0.1,
P0.2, P0.3,
P0.4, P0.5,
P0.6, P0.7

I/O

I/O

special

I/O open drain, internal
pullup

1, 2

23, 18, 24, 17, 25, 16,
26, 15

USB differential data lines

First I/O Port. P0.0 is used at power on to select low
or high power mode

P1.0, P1.1,
P1.2, P1.3,
P1.4, P1.5,
P1.6, P1.7

P2.0, P2.1,
P2.2, P2.3,
P2.4, P2.5,
P2.6, P2.7

P3.0, P3.1,
P3.2, P3.3,
P3.4, P3.5,
P3.6, P3.7

PullToGND

I/O

I/O

I/O open drain, internal
pullup

I/O open drain, internal
pullup

I/OII/O open drain, internal
pullup

27, 14, 28, 13, 29, 12,
30, 11

31, 10, 32, 9, 33, 8,
34, 7

Second I/O Port

Third I/O Port.

35, 6, 36, 5, 37, 4, 38,
3

19

Fourth I/O Port. P3.7 must be pulled high with a
100k resistor for proper operation of the chip.
Strong drive outputs, capable of driving LEDs
direct.

Used during manufacturing, connect to GND

GND

Vcc

XOut

XIn

Power supply

Power supply

OI20, 39

40

Ground

Supply voltage

2221On chip oscillator output

On chip oscillator input

Name

I/O

Type

Pins

Description

D+, D-

P0.0, P0.1,
P0.2, P0.3,
P0.4, P0.5,
P0.6, P0.7

I/O

I/O

special

I/O open drain, internal
pullup

16, 15

1, 2, 3, 4, 24, 23, 22,
21

USB differential data lines

First I/O Port.

P1.0, P1.1,
P1.2, P1.3,
P1.4, P1.5,
P1.6, P1.7

Power
PullToGND

GND

I/OII/O open drain, internal
pullup
Input internal pull
down

I

Power supply

5, 20, 6, 19, 7, 18, 8,
17
12

Second I/O Port

Used to set high or low power mode
109Used during manufacturing, connect to GND

Ground

Vcc

VregNCO

Power supply

Regulated 3V out

-1411

Supply voltage

Power for D- pullup resistor

13

do not connect

V 1.1.0, December 2nd 2013, for chip revision V1.0.3.0 and up

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4.2 Pin descriptions

D+, D-

Differential data lines of USB. Connect these
signals direct to a USB cable. D- requires a pull up
resistor, see application circuit for details.
For a PCB layout make sure to run these two
signals next to each other. USB data is a
differential signal that produces best signal quality
and lowest RF emission if the two lines are close to
each other.

P0.0..P0.7

First I/O port of the chip. These pins correspond
with the lowest 8 bits of the input or output (bits

0..7).
On IOW40 P0.0 serves the double purpose of
determining the power mode of the chip. To set the
desired power mode P0.0 must be pulled high or
low using a 100k resistor (or less). IO-Warrior40
reads the status on this pin after a reset prior to
enabling the internal pull up resistor.
A high on P0.0 on reset sets the high power mode,
this means the IO-Warrior40 will report as a high
power, bus powered device drawing up to 500mA.
Pulling P0.0 low on reset sets the low power mode
specifying 100mA maximum power draw.

P1.0..P1.7

Second I/O Port. Corresponds to the bits 8..15.

P2.0..P2.7 (IOW40 only)

Third I/O Port. Corresponds to the bits 16..23.

P3.0..P3.7 (IOW40 only)

Fourth I/O Port. Corresponds to the bits 24..31.
P3.7 does need to be pulled high with a
100kresistor on power up. This is necessary for
proper function of the chip.
P3.0..P3.7 have sufficient current sinking
capability to directly drive LEDs.

Pull to GND

This pin is used during production of the IO­Warrior chips, connect to GND.

XOut, XIn (IOW40 only)

Connection for external oscillator. A 6MHz
ceramic resonator should be connected here, no
additional components necessary.
Using a crystal results in unstable operation as the
oscillator is optimized for use with ceramic
resonators.
An external 6MHz clock may be connected to XIn,
XOut has to be left floating in this case.

GND

Power supply ground.

Vcc

Supply voltage.

A 100nF ceramic capacitor is required to be
connected directly to the power supply pins. The
two ground pins of IO-Warrior have to be
connected in the shortest possible way, no other
considerations may have any precedence over this.

Vreg (IOW24 only)

Regulated 3V output, to be used only for the
purpose of powering the USB D- pull up resistor.
Do not use this pin as a supply for any other circuit
than the pull up resistor.

Power (IOW24 only)

Input to set the power mode. The status of the pin
is checked only at power up and bus reset. Pulling
this pin to high sets high power mode, this means
the IO-Warrior24 will report as a high power, bus
powered device drawing up to 500mA. Pulling
Power low on reset sets the low power mode
specifying 100mA maximum power draw.

4.3 Special mode pin functions

IO-Warrior supports driving IIC compatible chips
and HD44780 compatible display modules and
some other display modules direct. IO-Warrior24
does also have a SPI interface. Handling IIC via
the normal generic I/O would be very slow as each
edge of data and clock would have to be
transmitted separately. At a rate of 125 such
transactions per second (which is about the
maximum IO-Warrior is allowed by USB
specifications) the maximum bit rate would be
around 30 bits/sec.
To make IIC and other devices usable IO-Warrior
implements the special mode functions. By
handling the IIC inside IO-Warrior the actual data
rate is increased to about 6000 bits/sec or 750
bytes/sec.
When any of the special mode functions is
activated a couple pins will no longer respond as
generic I/O pins but are under control of the
activated special mode function.

V 1.1.0, December 2nd 2013, for chip revision V1.0.3.0 and up