User's Manual Part 1

MC75 Hardware Interface Description

Strictly confidential / Draft

MC75_V00.190a Page 21 of 91 15.02.2005

3 Application Interface

MC75 is equipped with an 80-pin board-to-board connector that connects to the external

application. The host interface incorporates several sub-interfaces described in the following

chapters:

• Power supply - see Section 3.1

• Charger interface – Section 3.4

• SIM interface - see Section 3.6

• Serial interface ASC0 - see Section 3.7

• Serial interface ASC1 - see Section 3.8

• Serial interface USB - see Section 3.9.

• Serial interface I²C - see Section 3.10

• SD card interface - see Section 3.11

• Two analog audio interfaces - see Section 3.12

• Digital audio interface (DAI) - see Section 3.12 and 3.12.4

• Status and control lines: IGT, EMERG_RST, PWR_IND, SYNC - see Table 16