Silicon Laboratories UNI-C8051F020 User Manual

UNI-C8051F020

SILICON LABS

UNI PROTO BD

C8051

F020

U1

DEBUG

J1

J6

DGND
VDD

Silicon Laboratories

USB DEBUG ADAPTER

Run

Stop Power

USB Debug

Adapter

PC

Variable Power Supply (1 Amp Max)

3.3V

C8051F020 UNI PROTOTYPE BOARD USER’S GUIDE

1. Summary

The UNI Prototype Board provides easy development and debugging of applications on the C8051F020
microcontroller through use of a JTAG debug header and direct through-hole access to each pin.

2. Features

 C8051F020 MCU
 JTAG debug header
 0.1-inch center through-hole access to each pin
 Access to V

3. Hardware Setup

A USB Debug Adapter or EC2 Serial Adapter may be used to connect through the JTAG interface as shown in
Figure 1. Power to the device must be supplied externally through pin V

1. Connect the 10-pin ribbon cable from the debug adapter to the JTAG interface.

2. Connect the other end of the debug adapter to the appropriate port on the PC.

3. Connect an external power supply to the device by connecting the grounding cable to pin DGND on J6 and the
power cable to pin V

4. Set the power supply voltage to +3.3 V.

Note: Ensure the power supply is off when connecting or disconnecting cables to the device in order to prevent accidental

damage to device and/or debug adapter.

and DGND for an external voltage supplier

DD

.

DD

DD

on J6.

Figure 1. UNI Prototype Board Hardware Setup

Rev. 0.1 11/08 Copyright © 2008 by Silicon Laboratories UNI-C8051020

UNI-C8051F020

USB Debug Adapter EC2 Serial Adapter

Pin # Description Pin # Description

1,8 Not Connected 1 3.0 to 3.6 VDC Input

2,3,9 GND (Ground) 2,3,9 GND (Ground)

4 TCK (C2D) 4 TCK (C2D)

5TMS 5TMS

6TDO 6TDO

7TDI (C2CK) 7TDI (C2CK)

10 USB Power 8,10 Not Connected

Table 1. Adapters

2 Rev. 0.1