
AC75 Hardware Interface Description
Strictly confidential / Preliminary
s
AC75_HD_V00.202 Page 21 of 120 27.04.2006
3 Application Interface
AC75 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 – see Section
3.5
• SIM interface - see Section
3.9
• Serial interface ASC0 - see Section
3.10
• Serial interface ASC1 - see Section
3.11
• Serial interface USB - see Section
3.12
• Serial interface I²C/SPI - see Section
3.13 and 3.14
• Two analog audio interfaces - see Section
3.15
• Digital audio interface (DAI) - see Section
3.15 and 3.15.4
• 10 lines GPIO interface – see Section
3.16
• Status and control lines: IGT, EMERG_RST, PWR_IND, SYNC - see
Table 26
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