LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3.9.2.3 USB
The ESM6270 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
ESM6270 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 ESM6270.
3. TECHNICAL BRIEF
- 48 -
N26
USB_DAT_VP
USB_OE_TP_N
N25
N23
USB_SE0_VM
M16
H14
MMC_CMD_GPIO30
MMC_DATA_SDCC_DAT0_GPIO32
L14
D6
GPIO40
GPIO42
D7
PM_INT_N
PS_HOLD
USB_SE0
USB_DAT
USB_OE_N
MSM_MICROSD_CMD
MSM_MICROSD_DATA[0]
USB_D_M
20
GP1_DRV_N(MPP7)
21
12
USB_OE_N
13
VSW_5V
14
USB_CTL_N
15
USB_VBUS
16
USB_DAT
17
USB_D_P
18
19
USB_SE0
VREG_5V
4.7u
C528
47K
R514
C540
4.7u
USB_VBUS
USB_OE_N
USB_CNT_N
USB_DAT
MS
USB_SE0
MSM_USB_D-
Figure. Schematic of USB block(ESM6270 Side & PM6635 Side)
Table. USB Signal Interface
Name
Note
USB_DAT
Data to/from ESM
USB_SE0
Data to/from ESM
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
Содержание KE990 - Viewty Cell Phone 100 MB
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