LG KE990 Service Manual - Page 46
MSM Sub System - reset
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3.9.2 MSM Sub System 3.9.2.1 SIM Interface SIM interface scheme is shown in Figure. And, there control signals are followed • SIM_CLK : SIM Clock • SIM_Reset : SIM Reset • SIM_Data : SIM Data T/Rx 3. TECHNICAL BRIEF ESM6270 SIM CLK SIM Reset SIM Data PM6635 VREG_UIM 2.85V SIM CLK SIM Reset SIM Data SIM Figure. SIM Interface 3.9.2.2 UART Interface UART signals are connected to ESM GPIO through IO connector with 115200 bps speed. GPIO_Map GPIO_96 GPIO_95 Name UART_RXD UART_TXD Note Data_Rx Data_Tx Table. UART Interface Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes - 47 - LGE Internal Use Only
3.9.2 MSM Sub System
3.9.2.1 SIM Interface
SIM interface scheme is shown in Figure.
And, there control signals are followed
• SIM_CLK : SIM Clock
• SIM_Reset : SIM Reset
• SIM_Data : SIM Data T/Rx
3.9.2.2 UART Interface
UART signals are connected to ESM GPIO through IO connector with 115200 bps speed.
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc.
All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
- 47 -
GPIO_Map
Name
Note
GPIO_96
UART_RXD
Data_Rx
GPIO_95
UART_TXD
Data_Tx
Table. UART Interface
ESM6270
PM6635
SIM
SIM CLK
SIM Reset
SIM Data
SIM Data
SIM Reset
SIM CLK
VREG_UIM 2.85V
Figure. SIM Interface