User Guide

CC Technical Documentation Troubleshooting - Baseband
RM-11
Issue 1 02/2004 ©2004 Nokia Corporation Confidential Page 35
Figure 31: A waveform of digital accessory detection
FBus Detection
FBus communication in Tomahawk is done through the following lines:
• Pin 2 (Charge GND)
• Pin 3 (ACI)
•Pin 4 (Vout)
• Pin 6 (FBus Rx)
• Pin 7 (FBus Tx)