> 3 | Application Interface

> TC65 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 sections:

> • | 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 Section 3.14

> • | Two analog audio interfaces ‑ see Section 3.15

> • | Digital audio interface (DAI) ‑ see Section 3.15 and Section 3.15.4

> • | Status and control lines: IGT, EMERG_RST, PWR_IND, SYNC ‑ see Table 30