3. TECHNICAL BRIEF
- 44 -
3.10.2.3. USB
The MSM6250A 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
MSM6250A 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 MSM6250A. U880’s USB interface uses the PM6650-2 internal logic for USB
Transceiver.
Name
Note
USB_RCV
Rx_Data to MSM
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
MSM6250A
PM6650-2
IO
Connector
USB_D-
USB_D+
USB_VBUS
USB_SE0
USB_DAT
USB_OE_N
Figure. SIM Interface
MSM6250A_USB Block
PM6650-2_USB Block
Figure. Schematic of USB Block (MSM6250 Side & PM6650 Side)
2.2K
R219
2.2K
R220
N19
USB_SE0_VMI2C_SCL
USB_DAT_VP_I2C_SDA
N21
USB_OE_TP_N
N25
M19
UART3_DP_RX_DATA_GPIO[85]PM_SBST
L21
UART3_CTS_N_GPIO[86]PM_SBDT
L23
UART3_DP_TX_DATA_GPIO[84]PM_SBCK
MMC_CMD_GPIO[30]
L13
SBDT
J23
SBCK
K21
SBST
H26
I2C_SCL_GPIO[27]
J19
I2C_SDA_GPIO[26]
J21
UART2_CTS_N_GPIO[90]
G6
MMC_DATA_GPIO[32]
H13
UART2_RFR_N_GPIO[91]
E4
PM_INT_N_GPIO[40]
D6
PS_HOLD_GPIO[42]
D7
MMC_CLK_GPIO[31]
D12
UART2_DP_TX_DATA_GPIO[88]
D1
TP205
TP206
PM_INT_N
USIM_DATA
USIM_CLK
PS_HOLD
SBST
USIM_RST_N
PM_SBST
SBCK
SBDT
USB_DAT
USB_SE0
PM_SBCK
PM_SBDT
USB_OE_N
1608
2.2K
R406
C425
4.7u
4.7u
C424
RB521S-30
D401
17
USB_DAT
18
USB_D_P
19
USB_SE0
20
USB_D_M
21
GP1_DRV_N(MPP7)
VREG_5V
13
USB_OE_N
14
VSW_5V
15
USB_CTL_N
16
USB_VBUS
L403
4.7uH
+VPWR
VREG_5V
USB_VBUS
USB_OE_N
USB_DAT
USB_D+
USB_SE0
USB_D-
Z3X-BOX.COM
Содержание L602i
Страница 3: ... 4 Z 3 X B O X C O M ...
Страница 34: ...3 TECHNICAL BRIEF 35 3 7 Hardware Architecture Figure Simplified Block Diagram Z 3 X B O X C O M ...
Страница 46: ...3 TECHNICAL BRIEF 47 Figure PM6650 2 Functional Block Diagram Z 3 X B O X C O M ...
Страница 71: ...4 TROUBLE SHOOTING 72 4 2 SIGNAL PATH WCDMA Tx PATH WCDMA Rx PATH Z 3 X B O X C O M ...
Страница 83: ...4 TROUBLE SHOOTING 84 4 5 5 Check RF Rx Level TP1 TP3 TP4 Bias1 TP2 Z 3 X B O X C O M ...
Страница 101: ...4 TROUBLE SHOOTING 102 LCD Control data flow Z 3 X B O X C O M ...
Страница 109: ...4 TROUBLE SHOOTING 110 AUDIO AMP R502 C501 R503 FP500 501 CN600 PIN 14 15 Speaker Soldering Point Z 3 X B O X C O M ...
Страница 113: ...4 TROUBLE SHOOTING 114 Z 3 X B O X C O M ...
Страница 126: ...5 DOWNLOAD 127 Download of Module image in progress Download process has completed successfully Z 3 X B O X C O M ...
Страница 130: ...5 DOWNLOAD 131 Click on X button to use another function Z 3 X B O X C O M ...
Страница 134: ...6 BLOCK DIAGRAM 135 Table 2 1 1 RF Block Component Z 3 X B O X C O M ...
Страница 137: ...6 BLOCK DIAGRAM 138 Top Side Z 3 X B O X C O M ...
Страница 138: ...6 BLOCK DIAGRAM 139 Bottom Side Z 3 X B O X C O M ...
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