3. TECHNICAL BRIEF
- 27 -
C. SIM interface
The AD6527B provides SIM Interface Module. The AD6527B checks status periodically during
established call mode whether SIM card is inserted or not, but it doesn't check during deep Sleep
mode. In order to communicate with SIM card, 3 signals SIM_DATA, SIM_CLK,
SIM_RST(GPIO_23) are required. The descriptions about the signals are given by bellow Table 3-6
in detail.
D. Key interface
Include 5 column , 5 row. The AD6527B detects whether key is pressed or not by using interrupt
method.
E. AD6535 Interrupt
AD6535 provides an active-high interrupt output signal. Interrupt signals are generated by the
Auxiliary ADC, audio, and charger modules.
Signals
Description
SIM_DATA
This pin receives and sends data to SIM card.
This model can support only 3.0 volt interface SIM card.
SIM_CLK
Clock 3.25MHz frequency.
SIM_RST (GPIO_23)
Reset SIM block
Table 3-5. SIM CONTROL SIGNALS DESCRIPTION
Figure 3-6. SIM Interface of AD6527B
SIM CONNECTOR
(GPIO 23)
1000p
C204
20K
R201
5
VPP
3
CLK
4
GND
7
GND1
GND2
8
I_O
6
RST
2
VCC
1
J201
220n
C201
C203
22p
2V85_VSIM
C202
NA
2V85_VSIM
SIM_CLK
SIM_RST
SIM_DATA
Содержание KG320
Страница 1: ...Date May 2006 Issue 1 0 Service Manual Model KG320 Service Manual KG320 ...
Страница 3: ... 4 ...
Страница 20: ...3 TECHNICAL BRIEF 21 Figure 3 5 SKY77328 FUNCTIONAL BLOCK DIAGRAM ...
Страница 39: ...3 TECHNICAL BRIEF 40 3 7 CAMERA IC AIT811T U103 Figure 3 18 AIT811T APPLICATION BLOCKDIAGRAM ...
Страница 41: ...3 TECHNICAL BRIEF 42 3 8 MIDI IC YMU787 U202 Figure 3 20 YMU787 BLOCKDIAGRAM ...
Страница 59: ...4 2 TX Trouble 4 TROUBLE SHOOTING 60 SKY7477328 FEM 26Mhz OSCILLATOR SI4210 TEST POINT Figure 4 2 ...
Страница 72: ...4 TROUBLE SHOOTING 73 4 6 LCD Trouble AIT811T EMI FILTER CN102 TEST POINT Figure 4 6 ...
Страница 77: ...4 TROUBLE SHOOTING 78 Graph 4 10 a BLUE RST Graph 4 10 b DEBUG_TX RX Graph 4 10 c PCM_SYNCS TX RX USC0 ...
Страница 90: ...4 TROUBLE SHOOTING 91 4 14 Camera and Flash Trouble Camera Module U201 CN202 Figure 4 17 ...
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