Msm6250 Interfaces - Siemens SXG 75 Service Repair Documentation

6.3 MSM6250 interfaces

6.3.1 Logic interfaces
Each IO pin on the MSM6250 has an associated pad group. The pad group, and hence the IO pin, is
powered from the supplies as below:
Supply Name
Pad
Group
1 VREG_MSME
2 VREG_MSME
3 VREG_MSMP
4 VREG_MSMP
MSM6250 pad group supplies
The maximum and minimum possible logic levels seen on the I/O pins (allowing for maximum supply
variation and loading) should be within:
V
Pad
min
Group
(V)
1, 2 0
2, 3 0
MSM6250 logic specification
Peripheral systems on the phone are controlled by the MSM6250 logic signals listed below. These
signals uses General Purpose IO (GPIO) pins on the MSM6250 and are configured to perform the
required function by software.
A brief description of the signals is given in the following table:
Technical Documentation
TD_Repair_L3_SXG75_R1.0.pdf
Value
1.850 V (±3%)
1.850 V (±3%)
2.600 V (±3%)
2.600 V (±3%)
V V
OL OL OH
max min
(V) (V)
0.45 1.344
0.45 2.027
Company Confidential
Pad Group Connections
EBI1 bus to SDRAM
EBI2 bus to NAND FLASH and LCD. Plus some GPIO
Most peripheral interfaces
SIM bus (to PM6650). Plus one GPIO.
V V
OH iL
max min
(V) (V)
1.906 -0.3
2.678 -0.3
2006©BenQ
V V V
iL iH iH
max min max
(V) (V) (V)
0.628 1.239 2.085
0.883 1.741 2.822
Release 1.0
01/2006
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