Siemens SXG 75 Service Repair Documentation page 26

79 1 SDRAM_A1(0)
80 3 PM_SBCK
81 3 PM_SBST
82 3 PM_SBDT
83 3 USB_RS232_SEL1
84 3 IRDA_TXD
85 3 IRDA_RXD
86 3 ACC_PWR_EN
87 3 FLASH_EN
88 4 USIM_DATA
89 4 CAM1_SEL_N
90 4 USIM_RST
91 4 USIM_CLK
92 3
HPH_SD
93 3 CAM2_SEL_N
94 3 TCXO_EN
95 3 MSM_UART1_TXD
96 3 MSM_UART1_RXD
97 3 MSM_UART1_CTS_N
98 3
MSM6250 GPIO functions
The MSM6250 has additional dedicated lines for interfaces to the SDRAM, NAND FLASH, RF
system and USB functions.
Communication with the other major components of the Qualcomm chipset uses the following
synchronous serial ports:
Serial Bus
SBST_0, SBDT_0,
SBCK_0
PM_SBST, PM_SBDT,
PM_SBCK
BT_SBST, BT_SBDT,
BT_SBCK
MSM6250 communication ports
Technical Documentation
TD_Repair_L3_SXG75_R1.0.pdf
SDRAM interface.
PM6650 serial port. MSM <> PM6650 communication.
PM6650 serial port. MSM <> PM6650 communication.
PM6650 serial port. MSM <> PM6650 communication.
USB / UART select control. High for UART selection.
IrDA interface.
IrDA interface.
Accessory power supply enable. Active high.
Accessory connector. Clip-on camera flash enable.
SIM interface (PM6650 Buffer)
Camera bus switch. Enable for Mpix camera. Active low.
SIM interface (PM6650 Buffer)
SIM interface (PM6650 Buffer)
(Not used)
Camera bus switch. Enable for CIF camera. Active low.
PM6650 interface. Enable for TCXO Controller.
Accessory connector. Serial data out.
Accessory connector. Serial data in.
Accessory connector UART signal.
Connects to ..
RF System. RTR6250, RFR6250
Power Management. PM6650
Bluetooth. BCM2004
Company Confidential
2006©BenQ
Release 1.0
01/2006
Page 26 of 73