Flash Programming; Connections To Baseband - Nokia NPD-4 Series Troubleshooting - Bb

NPD-4
Troubleshooting — BB

Flash programming

Connections to Baseband

The flash programming equipment is connected to the baseband using test pads for gal-
vanic connection. The test pads are allocated in such a way that they can be accessed
when the phone is assembled. The flash programming interface uses the VPP, FBUSTX,
FBUSRX, MBUS, and BSI connections for the connection to the baseband. The connection
is through the UEM — which means that the logic levels correspond to 2.7V. Power is
supplied using the battery contacts.
Page 6
Figure 1: CDMA Block Diagram
Nokia Corporation
CCS Technical Documentation
Confidential Issue 1 02/2003