3. TECHNICAL BRIEF

3.11.2.3. USB

The MSM6245 device contains a Universal Serial Bus (USB) interface to provide an efficient interconnect between the mobile phone and a personal computer (PC). The USB interface of the MSM6245 was designed to comply with the definition of a peripheral as specified in USB Specification, Revision 1.1. Therefore, by definition, the USB interface is also compliant as a peripheral with the USB Specification, Revision 2.0. The USB Specification Revision 1.1 defines two speeds of operation, namely low-speed (1.5 Mbps) and full-speed (12 Mbps), both of which are supported by the MSM6245.

Name

Note

 

 

USB_DAT

Data to/from MSM

 

 

USB_SE0

Data to/from MSM

 

 

USB_OE_N

Out-Put Enable of Transceiver

 

 

USB_VBUS

USB_Power From Host(PC)

 

 

USB_D+

USB Data+ to Host

 

 

USB_D-

USB Data- to Host

 

 

Table. USB Signal Interface

RFRUART2N GPIO91

CTSUART2N GPIO90

DPUART2TX DATA GPIO88

 

CTSUART3N GPIO86

DPUART3RX DATA GPIO85

DPUART3TX DATA GPIO84 GPIO40

GPIO42

DATUSBVP

SE0USBVM

TPOEUSBN

 

CMDMMCGPIO30

DATAMMCSDCC DAT0 GPIO32

CLKMMCSDCC CLK GPIO31

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

USB_OE_N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

USB_CTL_N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

USB_VBUS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F4

G6

E4

L23

M21

M19

D6

D7

N26

N23

N25

H14

L14

M16

 

USB_DAT

 

 

 

 

 

 

 

 

 

 

 

 

USB_D+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

USB_SE0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

USB_D-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R309

2.2K

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C336

4.7u

 

 

USIM RST N

USIM DATA

 

 

 

 

PS HOLD

USB DAT

USB SE0

USB OE N

 

MMC CMD

 

1608

 

USIM CLK

 

 

 

PM INT N

 

MMC DATA

MMC CLK

 

 

 

 

 

12

VREG_5V

13

USB_OE_N

14

VSW_5V

15

USB_CTL_N

16

USB_VBUS

17

USB_DAT

18

USB_D_P

19

USB_SE0

20

USB_D_M

21

GP1_DRV_N(

LCD DRV N

22

Figure 1.17 Schematic of USB block(MSM6245 Side & PM6650 Side)

- 55 -

Page 54
Image 54
LG Electronics U250 service manual Usb, Table. USB Signal Interface

U250 specifications

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In conclusion, the LG Electronics U250 combines striking design with versatile functionality, making it a formidable entry in the smartphone market. With its impressive display, powerful performance, advanced camera features, and strong battery life, the U250 is poised to meet the needs of modern users seeking both style and substance in a mobile device. Whether for work or leisure, this smartphone is designed to enhance everyday life.