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USB-EK01 Users Manual (Rev 1.0)
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[Table 4.1 USB-EK01 Function Description]
No.
Name
Description
1
SW1
General Purpose Input
2
SW2
General Purpose Input
3
SW3
Reset
4
D1
General Purpose Output
5
D2
General Purpose Output
6
D3
Program Break Output
7
D4
Power Lamp
8
JP1
Address/Data/ I/O extension connector
9
JP2
Extension RS232 Interface(COM2)
10
JP3
Extension I2C Interface
11
JP4
Extension power connector. It can use to connect
external power supply in case of power need a more
than 500mA.
12
JP5
USB B type connector (Host connection)
13
JP6
Power selection connector(It select a power whether
get from the power at USB cable or external electric
power supply banner.)
14
JP7
Address/Data/ I/O extension connector
15
P1
RS232C connection, it can use a debugging and
general communication to maximum 115200bps.
Figure 4.2 shows USB-EK01 functional block diagram, we put emphasis to
expansibility and a design was performed around the main AN2131QC chip. All Data,
Address, I/O can exchange a board expansion, can connect external device through
RS232C, USB, I2C interface.
We made it so as there was a LED and Tact switch, and to be able to test the simple
external input/output test automatically, and don
’
t need an external power supply
because basically power supply get from USB cable.