User's Manual Part 1

MC75 Hardware Interface Description
Strictly confidential / Draft
s
MC75_V00.190a Page 19 of 91 15.02.2005
2.2 MC75 System Overview
User Application
MC75
Antenna
Interface
Application Interface
USB SIM
Serial 1
(
Modem)
Analog
Audio
Digital
Audio
Charge
Power
Supply
SD
interface
USB
Host
I2C
Slave
SIM card
Headphones
or Headset
Audio
Codec
UART
SD
memory
card
Serial 2
Charger
Charging
circuit
I
2
C
Figure 1: MC75 system overview