LG KF390 Service Manual page 53

3. TECHNICAL BRIEF
3.10.2.3 USB
The MSM6280 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
MSM6280 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
MSM6280.
Name
USB_DAT
USB_SE0
USB_OE_N
USB_VBUS
USB_D+
USB_D-
[Fig. 1.14] Schematic of USB block(MSM6280 Side & PM6658 Side)
LGE Internal Use Only
Note
Data to/from MSM
Data to/from MSM
Out-Put Enable of Transceiver
USB_Power From Host(PC)
USB Data+ to Host
USB Data- to Host
[Table 1.7] USB Signal Interface
USB_ID
USB_D_P
USB_D_M
USB_OE_N
USB_DAT
USB_SE0
- 54 -
H2
J2
J1
F4
G4
H4
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
USB_D+
USB_D-
USB_OE_N
USB_DAT
USB_SE0