3. TECHNICAL BRIEF
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3.15.6 System Integration
The UART (serial interface) is used for the software interface between S-Gold2 baseband and the
Bluetooth chip. For the HCI UART transport layer four interface lines are needed, two for data
(UARTTXD and UARTRXD) and two for hardware flow control (UARTRTS and UARTCTS). For the
HCI Three-Wire UART transport layer two interface lines (UARTTXD and UARTRXD) are needed. The
hardware flow control lines (UARTRTS and UARTCTS) are supported but the use is optional. In
KE770used three-wire UART communication.
The UART interface has its own supply voltage (VDDUART) to ensure compatibility with the I/O
voltages used by the S-Gold2.
The PCM/I2S interface is used as audio interface and can handle up to two voice channels. The PCM
interface also has its own supply voltage (VDDPCM) to ensure compatibility with the I/O voltages used
by the S-Gold2 baseband processor.
Figure 23 Mobile system integration
Содержание KE 770
Страница 1: ...Service Manual Model KE770 Service Manual KE770 Date April 2007 Issue 1 0 ...
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Страница 49: ...3 TECHNICAL BRIEF 50 3 15 BLUETOOTH Figure 22 BLUETOOTH Functional block diagram ...
Страница 57: ...3 TECHNICAL BRIEF 58 RF Block Diagram III 2 RF circuit ...
Страница 76: ...Check Points 5 Trouble shooting 77 ...
Страница 78: ...5 Trouble shooting 79 ...
Страница 82: ...5 Trouble shooting 83 ...
Страница 87: ...5 Trouble shooting 88 ...
Страница 100: ... 101 6 Download S W upgrade Click on the blue text to select the COM port ...
Страница 101: ...6 Download S W upgrade 102 Will change the window as below ...
Страница 103: ...6 Download S W upgrade 104 During download the screen will look something like this ...
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Страница 111: ... 112 8 PCB LAYOUT ...
Страница 112: ... 113 8 PCB LAYOUT ...
Страница 113: ... 114 8 PCB LAYOUT ...
Страница 114: ... 115 8 PCB LAYOUT ...
Страница 115: ... 116 8 PCB LAYOUT ...
Страница 117: ...9 RF Calibration 118 9 2 3 Click SETTING Menu 9 2 4 Setup Ezlooks menu such as the following figure ...
Страница 119: ...9 RF Calibration 120 9 2 7 Select MODEL 9 2 8 Click START for RF calibration 9 2 9 RF Calibration finishes ...
Страница 121: ...10 Stand alone Test 122 4 Click Update Info for communicating Phone and Test Program ...
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Страница 143: ...Note ...
Страница 144: ...Note ...