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.
3. TECHNICAL BRIEF
- 44 -
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
Table. USB Signal Interface
Figure. SIM Interface
PM6650-2_USB Block
Figure. Schematic of USB block(MSM6250 Side & PM6650 Side)
TP206
TP211
TP207
TP204
TP205
TP209
N19
USB_SE0_VMI2C_SCL
N21
USB_DAT_VP_I2C_SDA
N25
USB_OE_TP_N
M19
UART3_DP_TX_DATA_GPIO[84]PM_SBCK
L21
UART3_DP_RX_DATA_GPIO[85]PM_SBST
UART3_CTS_N_GPIO[86]PM_SBDT
L23
K21
SBCK
L13
MMC_CMD_GPIO[30]
J21
I2C_SDA_GPIO[26]
J23
SBDT
H26
SBST
J19
I2C_SCL_GPIO[27]
G6
UART2_CTS_N_GPIO[90]
H13
MMC_DATA_GPIO[32]
E4
UART2_RFR_N_GPIO[91]
D6
PM_INT_N_GPIO[40]
D7
PS_HOLD_GPIO[42]
D1
UART2_DP_TX_DATA_GPIO[88]
D12
MMC_CLK_GPIO[31]
TP208
TP210
USB_SE0
USB_OE_N
I2C_SCL
MMC_CMD
MMC_DATA
MMC_CLK
I2C_SDA
USIM_DATA
USIM_CLK
PS_HOLD
PM_INT_N
USIM_RST_N
PM_SBST
SBCK
SBDT
SBST
USB_DAT
PM_SBCK
PM_SBDT
4.7u
C427
R407
47K
24
KPDPWR_N
25
VIB_DRV_N
26
RUIM_IO(MPP12)
17
USB_DAT
18
USB_D_P
19
USB_SE0
20
USB_D_M
21
GP1_DRV_N(MPP7)
22
LCD_DRV_N
23
KPD_DRV_N
VREG_5V
13
USB_OE_N
14
VSW_5V
15
USB_CTL_N
16
USB_VBUS
USB_CNT_N
PM_ON_SW_N
VBAT_TEMP
USB_OE_N
USB_DAT
USB_D+
USB_SE0
USB_D-
MSM6250A
PM6650-2
IO
Connector
USB_D-
USB_D+
USB_VBUS
USB_SE0
USB_DAT
USB_OE_N
MSM6250A_USB Block
Summary of Contents for U890
Page 1: ...Date April 2006 Issue 1 0 Service Manual Model U890 U890c Service Manual U890 U890c ...
Page 3: ... 4 ...
Page 20: ...3 TECHNICAL BRIEF 21 ...
Page 46: ...3 TECHNICAL BRIEF 47 Figure PM6650 2 Functional Block Diagram ...
Page 70: ...4 TROUBLE SHOOTING 71 4 2 SIGNAL PATH ...
Page 109: ...4 TROUBLE SHOOTING 110 CN600 50pin LCD connector CN901 C907 C911 FB901 FB902 ...
Page 115: ...4 TROUBLE SHOOTING 116 C226 C227 for MIC serial capacitor ...
Page 118: ...4 TROUBLE SHOOTING 119 Q400 Q401 Q402 VBATT GND ...
Page 139: ...Table 2 1 1 RF Block Component 6 BLOCK DIAGRAM 140 ...
Page 140: ...6 BLOCK DIAGRAM 141 6 2 Interface Diagram U890 Interface Diagram ...
Page 142: ...6 BLOCK DIAGRAM 143 Top Side ...
Page 143: ...6 BLOCK DIAGRAM 144 Bottom Side ...
Page 152: ... 153 8 pcb layout ...
Page 153: ... 154 8 pcb layout ...
Page 154: ... 155 8 pcb layout ...
Page 155: ... 156 8 pcb layout ...
Page 156: ... 157 8 pcb layout ...
Page 157: ... 158 8 pcb layout ...
Page 163: ...9 CALIBRATION 164 9 3 HOT KIMCHI Example Choose_U890 ...
Page 164: ...9 CALIBRATION 165 Click APPLY button Click START button ...
Page 165: ...9 CALIBRATION 166 Click Run button to lunch RF AUTOTEST ...
Page 167: ... 168 ...
Page 191: ...Note ...
Page 192: ...Note ...