Hardware Interface Description - Wireless Data Modules
Hardware Interface Description - Wireless Data Modules
Hardware Interface Description - Wireless Data Modules
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
MC55/56 <strong>Hardware</strong> <strong>Interface</strong> <strong>Description</strong><br />
Confidential / Released<br />
s<br />
2.2 Circuit concept<br />
Figure 1 shows a block diagram of the MC55/56 module and illustrates the major functional<br />
components:<br />
GSM / GPRS baseband block:<br />
• Baseband controller operating at 26MHz<br />
• Power supply ASIC<br />
• Stacked Flash / SRAM<br />
• Application interface (board-to-board connector)<br />
GSM RF block:<br />
• Skyworks RF transceiver<br />
• Skyworks RF power amplifier / FEM<br />
• RF front end (antenna connector)<br />
RF Power<br />
Amplifier<br />
RF Section<br />
<strong>Interface</strong><br />
RF - Baseband<br />
Send<br />
Receive<br />
Control<br />
Baseband<br />
Controller<br />
<strong>Data</strong><br />
Adr<br />
Control<br />
<strong>Data</strong><br />
Adr<br />
Control<br />
5<br />
SRAM<br />
Flash<br />
DAI<br />
9<br />
2x Audio<br />
8<br />
4<br />
ASC0<br />
ASC1<br />
Measuring<br />
Network<br />
CCRST<br />
CCCLK<br />
CCIO<br />
CCIN<br />
4<br />
CCVCC<br />
(GND) 2<br />
Power<br />
Supply<br />
ASIC<br />
SYNC<br />
6 SIM <strong>Interface</strong><br />
VDD<br />
VDDLP<br />
/EMERGOFF<br />
/IGT<br />
POWER<br />
Application <strong>Interface</strong><br />
(50 pins)<br />
CCIN<br />
CCVCC<br />
4<br />
SIM<br />
Charger<br />
input<br />
MC5x<br />
CHARGE<br />
5 BATT+<br />
5 GND<br />
BATT_TEMP<br />
Ext.<br />
Charging<br />
Circuit<br />
NTC<br />
+<br />
Figure 1: MC55/56 block diagram<br />
MC55/56_hd_v02.06 Page 21 of 105 29.10.2004
Change language