Document
IA186EM/IA188EM 8/16-Bit Microcontrollers
Data Sheet
www.DataSheet4U.com
Copyright ! 2004
IA186EM/IA188EM
8/16-BIT Microcontrollers
As of Production Version -03
Data Sheet
Contents
Features......................................................................................................................................................4 Description ...............................................................................................................................................5 Bus Interface and Control ................................................................................................................7 Peripheral Control and Registers ..................................................................................................7 Clock and Power Management ....................................................................................................49
System Clocks..........................................................................................................................................49 Power-Save Mode ....................................................................................................................................50 Initialization and Reset.............................................................................................................................50 Reset Configuration Register ...................................................................................................................50 Chip-Selects .............................................................................................................................................50 Chip-Select Timing ..................................................................................................................................50 Ready and Wait-State Programming........................................................................................................50 Chip-Select Overlap .................................................................................................................................51 Upper Memory Chip Select .....................................................................................................................52 Low Memory Chip Select ........................................................................................................................52 Midrange Memory Chip Selects ..............................................................................................................52 Peripheral Chip Selects ............................................................................................................................52 Refresh Control ........................................................................................................................................53 Interrupt Control ......................................................................................................................................53 Interrupt Types .....................................................................................................................................54 Interrupt Table Notes ...........................................................................................................................55 Timer Control...........................................................................................................................................55 Direct Memory Access (DMA)................................................................................................................56 DMA Operation .......................................................................................................................................56 DMA Channel Control Registers .........................................................................................................56 DMA Priority .......................................................................................................................................57 Asynchronous Serial Port ...............................................................................................................58
Synchronous Serial Port ..................................................................................................................58 Programmable I/O (PIO) ................................................................................................................59 Pin Descriptions ..................................................................................................................................60 Instruction Set Summary ................................................................................................................71
Key to Abbreviations Used Instruction Summary Table .........................................................................85 Absolute Maximum Ratings ...................................................................................................