LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
B. the others
❏
TRK_LO_ADJ : TCXO(19.2M) Control
❏
ANT_SEL[0-2] : Ant Switch Module Mode Selection(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
3.9.2 ESM6270 Sub System
USIM Interface
SIM interface scheme is shown in [Fig. 3.14]
And, there control signals are followed
❏
USIM_CLK : USIM Clock
❏
USIM_Reset: USIM Reset
❏
USIM_Data : USIM Data T/Rx
UART Interface
UART signals are connected to ESM6270 GPIO through IO connector with 115200 bps speed.
- 42 -
ESM6270
PM6635
[Fig. 3.14] SIM Interface
GPIO_Map
Name
Note
GPIO_96
UART_RXD
Data_Rx
GPIO_95
UART_TXD
Data_Tx
[Table 3.5] UART Interface
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