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3. TECHNICAL BRIEF
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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
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
Figure. Schematic of USB block(MSM6280 Side & PM6650 Side)
USB_DAT_VP
N26
N25
USB_OE_TP_N
USB_SE0_VM
N23
M16
MMC_CLK_SDCC
MMC_CMD_GPIO
H14
L14
MMC_DATA_SDC
GPIO40
D6
D7
GPIO42
PM_INT_N
PS_HOLD
USB_SE0
USB_DAT
USB_OE_N
ICROSD_CMD
OSD_DATA[0]
MICROSD_CLK
USB_CTL_N
USB_VBUS
16
USB_DAT
17
USB_D_P
18
19
USB_SE0
USB_D_M
20
GP1_DRV_N(M
21
4.7u
C540
47K
R514
USB_VBUS
USB_DAT
MS
USB_SE0
MSM_USB_D-
Содержание U990
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