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3. TECHNICAL BRIEF
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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.
Table. USB Signal Interface
Figure 1.17 Schematic of USB block(MSM6245 Side & PM6650 Side)
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
G6
UART2_DP_TX_DATA_GPIO88
E4
F4
UART2_RFR_N_GPIO91
L23
UART3_CTS_N_GPIO86
UART3_DP_RX_DATA_GPIO85
M21
M19
UART3_DP_TX_DATA_GPIO84
N26
USB_DAT_VP
USB_OE_TP_N
N25
N23
USB_SE0_VM
UART2_CTS_N_GPIO90
MMC_CLK_SDCC_CLK_GPIO31
M16
H14
MMC_CMD_GPIO30
MMC_DATA_SDCC_DAT0_GPIO32
L14
D6
GPIO40
GPIO42
D7
MMC_CLK
MMC_DATA
MMC_CMD
USIM_CLK
PM_INT_N
PS_HOLD
USIM_DATA
USIM_RST_N
USB_SE0
USB_DAT
USB_OE_N
1608
R309 2.2K
16
USB_VBUS
17
USB_DAT
18
USB_D_P
19
USB_SE0
20
USB_D_M
21
GP1_DRV_N(
22
LCD DRV N
12
VREG_5V
13
USB_OE_N
14
VSW_5V
15
USB_CTL_N
C336
4.7u
USB_D+
USB_SE0
USB_D-
USB_OE_N
USB_VBUS
USB_CTL_N
USB_DAT