B. the others
• TRK_LO_ADJ : TCXO(19.2M) Control
• PA_ON : WCDMA(2100) TX Power Amp Enable
• ANT_SEL[0-3] : Ant Switch Module Mode Selection(WCDMA,GSM Tx/Rx,DCS-PCS Tx/Rx)
• GSM_PA_BAND : GSM/DCS-PCS Band Selection of Power Amp
• GSM_PA_RAMP : Power Amp Gain Control of APC_IC
• GSM_PA_EN : Power Amp Gain Control Enable of APC_IC
3.11.2 MSM Sub System
3.11.2.1 USIM Interface
SIM interface scheme is shown in Figure.
And, there control signals are followed
• USIM_CLK : USIM Clock
• USIM_Reset : USIM Reset
• USIM_Data : USIM Data T/Rx
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3. TECHNICAL BRIEF
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
MSM6280
PM6658
USIM
USIM CLK
USIM Reset
USIM Data
USIM Data
USIM Reset
USIM CLK
VREG_USIM 3.0V
Figure. SIM Interface