User Guide

6015/6015i/6016i/6019i (RH-55), 6012 (RM-20)
Troubleshooting - Baseband Nokia Customer Care
Page 16 ©2004 Nokia Corporation Company Confidential Issue 1 - Revision 002 09/2004
SleepCLK (Digital)
The UEM provides a 32 kHz sleep clock for internal use and to the UPP, where it is used
for the sleep mode timing.
Figure 8: 32 kHz digital sleep clock signal
SleepCLK (Analog)
When the system enters sleep mode or power off mode, the external 32 KHz crystal
provides a reference to the UEM RTC circuit to turn on the phone during power off or
sleep mode.