User manual

Code Mercenaries
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4.0 Pin Descriptions IO-Warrior40
4.1 Pin Descriptions IO-Warrior24
I/O
Type
Pins (DIL40)
Description
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
I/O
I/O
I/O open drain, internal
pullup
I/O open drain, internal
pullup
I/O
I
I/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
Power supply
Power supply
O
I
20, 39
40
Ground
Supply voltage
22
21
On chip oscillator output
On chip oscillator input
I/O
Type
Pins
Description
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.
I/O
I
I/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
10
9
Used during manufacturing, connect to GND
Ground
O
Power supply
Regulated 3V out
-
14
11
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