Am186CC BLOCK DIAGRAM Serial Communications Peripherals Chip Selects (14) Programmable I/O (48) Watchdog Timer Interrupt Controller (17 Ext. Sources) UART High Speed UART with Autobaud USB Synchronous Serial Interface (SSI) Glueless Interface to RAM/ROM DRAM Controller Timers (3) General Purpose DMA (4) Smart DMA (8) HDLC TSA Raw DCE HDLC TSA PCM Highway Muxing HDLC TSA GCI (IOM-2) HDLC TSA I N F O R M A T I O N Physical Interface A D V A N C E Am186™CC Microcontroller Data Sheet Am186 Core 3