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3. TECHNICAL BRIEF
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3.8 Subsystem(MSM6250)
3.8.1 ARM Microprocessor Subsystem
The MSM6250 device uses an embedded ARM926EJ-S microprocessor. This microprocessor,
through the system software, controls most of the functionality for the MSM, including control of the
external peripherals such as the keypad, LCD, RAM, and ROM devices. Through a QUALCOMM
proprietary serial bus interface (SBI) the ARM926EJ-S configures and controls the functionality of the
RTR6250, RFR6200, RFL6200, and PM6650 devices.
3.8.2 UMTS Subsystem
The UMTS Subsystem performs the digital UMTS signal processing. Its components include:
• Searcher engine
• Demodulating fingers
• Combining block
• Frame deinterleaver
• Viterbi decoder
• Up-link subsystem
• Turbo decoder
On the down-link channel the UMTS subsystem searches, demodulates, and decodes incoming
CPICH, CCPCH, SCH, and Traffic Channel information. It extracts packet data from the downlink
traffic channel and prepares the packet data for processing. For the up-link, the CDMA subsystem
processes the packet data and modulates the up-link traffic channel (DCH).
3.8.3 GSM Subsystem
The GSM Subsystem performs the digital GSM signal processing.
3.8.4 RF Interface
The RF interface communicates with the mobile station’s external RF and analog baseband circuits.
Signals to these circuits control signal gain in the Rx and Tx signal path and maintain The system’s
frequency reference.
3.8.5 Serial Bus Interface(SBI)
The MSM6250 device’s SBI is designed specifically to be a quick, low pin count control protocol for
QUALCOMM’s RTR6250, RFR6200, RFL6200, and PM6650 ASICs. Using the SBI, the RTR6250,
RFR6200, RFL6200, and PM6650 devices can be configured for different operating modes and for
minimum power consumption, extending battery life in Standby mode. The SBI also controls DC
baseband offset errors.
Summary of Contents for U8210
Page 22: ...3 TECHNICAL BRIEF 23 Figure 3 2 1 1 RTR6250 IC Functional Block Diagram ...
Page 37: ...3 TECHNICAL BRIEF 38 Figure 3 5 12 1 Bluetooth system architecture ...
Page 110: ...4 TROUBLE SHOOTING 111 USB_D USB_D USB_VBUS X100 48M 48MHz ...
Page 115: ...4 TROUBLE SHOOTING 116 LCD Control data flow ...
Page 117: ...4 TROUBLE SHOOTING 118 LCD Control data flow ...
Page 122: ...4 TROUBLE SHOOTING 123 TR400 ...
Page 124: ...4 TROUBLE SHOOTING 125 FLASH_ON from Main Bíd PM6650 CN1 Flash LED ...
Page 127: ...4 TROUBLE SHOOTING 128 FB503 CN500 FB502 CN2 CN1 ...
Page 129: ...4 TROUBLE SHOOTING 130 C627 Head_set Output Pin 4 5 C626 CN304 R624 ...
Page 131: ...4 TROUBLE SHOOTING 132 R649 CN300 CN2 CN1 U605 C633 R648 C634 R622 R623 ...
Page 133: ...4 TROUBLE SHOOTING 134 R649 CN300 CN2 CN1 U605 C633 R648 C634 R622 R623 ...
Page 135: ...4 TROUBLE SHOOTING 136 C627 Head_set Output Pin 4 5 C626 CN304 R624 ...
Page 137: ...4 TROUBLE SHOOTING 138 R649 CN300 CN2 CN1 U605 C633 R648 C634 R622 R623 ...
Page 139: ...4 TROUBLE SHOOTING 140 C627 Head_set Output Pin 4 5 C626 CN304 R624 ...
Page 141: ...4 TROUBLE SHOOTING 142 MIC Contact C404 C401 ...
Page 143: ...4 TROUBLE SHOOTING 144 C115 Head_Phone Input Pin 2 3 C102 CN304 R624 ...
Page 146: ...4 TROUBLE SHOOTING 147 Receptacle 4 6V 4 6V ...
Page 151: ...5 BLOCK DIAGRAM 152 Top Side ...
Page 152: ...5 BLOCK DIAGRAM 153 Bottom Side ...
Page 154: ...6 DOWNLOAD 155 It is ready for downloading ...
Page 160: ...6 DOWNLOAD 161 6 Click on Download to download ...
Page 165: ...6 DOWNLOAD 166 Downloading the Module image Finally Download has been complete ...
Page 168: ...6 DOWNLOAD 169 When you meet the NV Restore error Connect to the phone ...
Page 170: ...6 DOWNLOAD 171 Select the proper file and click on Restore Reading the NV file and restore NV ...
Page 200: ... 201 9 PCB LAYOUT ...
Page 201: ... 202 9 PCB LAYOUT ...
Page 202: ... 203 9 PCB LAYOUT U8210 KEYPAD SPEY0032001 1 1 TOP ...
Page 203: ... 204 9 PCB LAYOUT ...
Page 204: ... 205 9 PCB LAYOUT ...
Page 206: ... 207 ...
Page 207: ... 208 ...