User Guide

Nokia Customer Care System Module
Company Confidential RH-21
Issue 2 07/2004  2004 Nokia Corporation. Page 23
BB Internal Connections
UEM Block Signal Description
RIP
Signal
name
Connected
from - to
UEM I/O
Signal Properties
A/D Levels-Freq./
Timing resolution
Description / Notes
RFCONVDA(5:0)* 1.8V digital interface between UPP and UEM. RF converter CLK. Rx and
Tx I&Q data (bit stream signals).
0 RFCONVCLK UPP UEM In Dig 0/1.8V 4.86
MHz/
Digi
3.24
MHz /
Ana
RF Converter Clock
1 RXID UEM UPP Out (PDM) RxI Data
(PDM) RxQ Data
2RXQD
3 TXID UPP UEM In (PDM) TxI Data
(PDM) TxQ Data
4TXQD
5 AUXDA UPP UEM In Auxiliary DAC Data
RFCONVCTRL(2:0)* 1.8V digital interface between UPP (DSP) and UEM. RF converter UEM
RF IF bidirectional serial Control Bus, “DBUS”.
0 DBUSCLK UPP UEM In Dig 0/1.8V 9.72MHz Clock for Fast Control to
UEM
1DBUSDA In/
Out
Fast Control Data to/from
UEM
2 DBUSENX In Fast Control Data Load /
Enable to UEM
AUDUEMCTRL(3.0)* 1.8V digital interface between UPP (MCU) and UEM. Bidirectional Con-
trol Bus “CBUS”
0 UEMINT UEM UPP Out Dig 0/1.8V UEM Interrupt
1 CBUSCLK UPP UEM In 1.08MHz Clock for control/Audio
Convertors in UEM
2CBUSDA In/
Out
1.08Mbit
/s
Control data
3 CBUSENX In Control Data Load Signal
AUDIODATA(1:0)* 1.8V digital audio interface between UPP and UEM audio codec. PDM
data clocked by CBUSCLK
0 EARDATA UPP UEM In Dig 0/1.8V 1.08Mbit
/s
PDM Data for Downlink
Audio, clocked by CBUSCLK
1 MICDATA UEM UPP Out PDM Data forUplink Audio,
clocked bu CBUSCLK