CP2103-EK Datasheet, PDF (4/8 Pages) Silicon Laboratories – EVALUATION KIT USERS GUIDE

CP2103-EK
6. Target Board
The CP2103 Evaluation Kit includes an evaluation board with a CP2103 device pre-installed for evaluation and pre-
liminary software development. Numerous input/output (I/O) connections are provided to facilitate prototyping using
the evaluation board. Refer to Figure 3 for the locations of the various I/O connectors.
J1
J2
J3
J4, J7
J5, J6
D0–D3
D4
DB9 connector for RS232 interface
UART signal access connector
USB connector for USB interface
Power Connector
GPIO Access Connector
Green GPIO LEDs
Red SUSPEND indicator LED
_________
SUSPEND
D4
RS232 ^J4
J6
D3
D2
Transceiver
CP2103
J2
J7
J5 ^J3
D1
J1
Pin 2
Pin 1
D0
Figure 3. CP2103 Evaluation Board
6.1. LED Headers (J5, J6)
Connectors J5 and J6 are provided to allow access to the GPIO pins on the CP2103. Place shorting blocks on J5
and J6 to connect the GPIO pins to the four green LEDs D0 - D3. These LEDs can be used to indicate active
communications through the CP2103. Table 1 shows the LED corresponding to each header position.
Table 1. J5 and J6 LED Locations
LED
D0
D1
D2
D3
Pins
J5[3:4]
J5[1:2]
J6[3:4]
J6[1:2]
6.2. Universal Serial Bus (USB) Interface (J3)
A Universal Serial Bus (USB) connector (J3) is provided to facilitate connections to the USB interface on the
CP2103. See Table 2 for the USB pin definitions.
Table 2. USB Connector Pin Descriptions
Pin #
1
2
3
4
Description
VBUS
D-
D+
GND (Ground)
4
Rev. 0.4