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.
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 43 -
[Table 3.6] USB Signal Interface
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
USB_DAT_VP
N26
N25
USB_OE_TP_N
USB_SE0_VM
N23
M16
MMC_CMD_GPIO30
H14
L14
MMC_DATA_SDCC_
D
GPIO40
D6
D7
GPIO42
MICROSD_DATA(0)
MICROSD_CMD
USB_OE_N
USB_SE0
USB_DAT
PS_HOLD
PM_INT_N
C426
4.7u
R412
47K
USB_VBUS
14
VSW_5V
12
VREG_5V
13
19
USB_SE0
USB_VBUS
16
15
USB_CTL_N
USB_DAT
17
20
USB_D_M
USB_D_P
18
USB_ID
USB_OE_N
GP1_DRV_N_MPP7
21
USB_SE0
USB_OE_N
USB_D+
USB_D-
USB_DAT
USB_CNT_N
[Fig. 3.15] Schematic of USB block(ESM6270 Side & PM6635 Side)
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