Cbusclk Interface; Dbusclk Interface - Nokia NPD-1 Series Troubleshooting - Bb
Transceivers
Hide thumbs
Also See for NPD-1 Series:
- Troubleshooting - rf (62 pages) ,
- Assembly (10 pages) ,
- Troubleshooting - antenna (8 pages)
Table of Contents
Advertisement
CCS Technical Documentation
CBUSClk Interface
A 1.2 MHz clock signal is use for CBUS, which is used by the MCU to transfer data
between UEM and UPP. (See figure below for Cbus data transfer.)
DBUSClk Interface
A 9.6 MHz clock signal is used for DBUS, which is used by the DSP to transfer data
between UEM and UPP. (See following figure.)
Issue 1 11/2002
Figure 9: Cbus data transfer
Figure 10: Dbus data transfer
Nokia Corporation
Troubleshooting — BB
Confidential
NPD-1
Page 17
Advertisement
Table of Contents
Troubleshooting
