Msm Sub System - LG U8500 Service Manual

3. TECHNICAL BRIEF

3.10.2 MSM Sub System

3.10.2.1 SIM 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
MSM6250
3.10.2.2 UART Interface
UART signals are connected to MSM GPIO through IO connector with 115,200 bps speed.
And, used for RF calibration and Data download.
GPIO_Map
GPIO_96
GPIO_95
USIM CLK
USIM Reset
PM6650
USIM Data
Figure 3.10.2.1-1 UART Interface
Name
RX_M
TX_M
Table 3.10.2.2-1 UART Interface
- 46 -
VREG_USIM 2.85V
USIM CLK
USIM
USIM Reset
USIM Data
Note
Data_Rx
Data_Tx