Silicon Laboratories CP2112-EK manual Target Board, LED Headers J1, J2, J3, J4

Page 6

CP2112-EK

5. Target Board

The CP2112 Evaluation Kit includes an evaluation board with a CP2112 device pre-installed for evaluation and preliminary software development. Numerous input/output (I/O) connections are provided to facilitate prototyping using the evaluation board. Refer to Figure 6 for the locations of the various I/O connectors. Refer to Figure 7, “CP2112 Evaluation Board Schematic” for information regarding the SMBus pull-up resistors that are located on the target board.

P1

USB connector for USB interface

H1

Access Connector for SMBus interface (SDA, SCL, GND, Pull-Up Voltage)

J1, J2, J3, J4

GPIO access connectors

J6

Power connector

J7

SMBus pull-up voltage connector

J8

Red

 

 

LED connector

SUSPEND

DS0–DS7

Green GPIO LEDs

DS8

Red

 

LED

SUSPEND

TB1

SMBus interface terminal block

TB1

SILICON LABS

GND H1

SDA GND

SCL EXT_PU EXT_PU

CP2112-EK

www.silabs.com

J4

DS7

DS6 J3

DS5

DS4

J2

DS3

DS2 J1

DS1

DS0

J8

 

SUSPEND

 

DS8

P1

U1

 

CP2112

 

EXTPU VIOJ7

VIO VDD +3V NET A

SMBUS PU_V

J6

Figure 6. CP2112 Evaluation Board with Default Shorting Blocks Installed

5.1. LED Headers (J1, J2, J3, J4)

Connectors J1, J2, J3, and J4 are provided to allow access to the GPIO pins on the CP2112. Place shorting blocks on J1, J2, J3, and J4 to connect the GPIO pins to the eight green LEDs, DS0–DS7. These LEDs can be used to indicate active communications through the CP2112. Table 1 lists the LED corresponding to each header position.

Table 1. J2 and J3 LED Locations

 

LED

Pins

 

 

 

 

 

 

DS0

J1[3:4]

 

 

 

 

 

 

DS1

J1[1:2]

 

 

 

 

 

 

DS2

J2[3:4]

 

 

 

 

 

 

DS3

J2[1:2]

 

 

 

 

 

 

DS4

J3[3:4]

 

 

 

 

 

 

DS5

J3[1:2]

 

 

 

 

 

 

DS6

J4[3:4]

 

 

 

 

 

 

DS7

J4[1:2]

 

 

 

 

 

 

 

 

 

6

Rev. 0.2

Image 6
Contents Kit Contents Software SetupCP2112 Hardware Interface CP2112-EK CP2112 Windows ApplicationData Transfer Tab Pin Configuration Tab Customization Tab Target Board LED Headers J1, J2, J3, J4SMBus Pull-Up Voltage Connector J7 SMBus Signals TB1, H1VDD and VIO Power Connector J6 Suspend LED Connector J8Schematic CP2112 Evaluation Board SchematicDocument Change List Revision 0.1 to RevisionContact Information