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IA186EM/IA188EM
8/16-Bit Microcontrollers
Data Sheet
www.DataSheet4U.com
Copyright ! 2004

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IA186EM/IA188EM
8/16-BIT Microcontrollers
Data Sheet
As of Production Version -03
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 .........................................................................................................90
DC Characteristics Over Commercial Operating Ranges..............................................90
AC Characteristics Over Commercial Operating Ranges (40 MHz) ...........................................................91
Waveforms .............................................................................................................................................94
Alphabetic Key to Waveform Parameters................................................................................................94
Numeric Key to Waveform Parameters ...................................................................................................95
Read Cycle Timing ..................................................................................................................................97
3737 Princeton NE, Ste 130 • Albuquerque, NM 87107 • Tel 505.883.5263 • Fax 505.883.5477 • www.Innovasic.com

No Preview Available !

IA186EM/IA188EM
8/16-BIT Microcontrollers
Data Sheet
As of Production Version -03
Write Cycle ..............................................................................................................................................98
Write Cycle Timing .................................................................................................................................99
PSRAM Read Cycle...............................................................................................................................100
PSRAM Read Cycle Timing..................................................................................................................101
PSRAM Write Cycle..............................................................................................................................102
PSRAM Write Cycle Timing .................................................................................................................103
PSRAM Refresh Cycle ..........................................................................................................................104
PSRAM Refresh Cycle ..........................................................................................................................104
Interrupt Acknowledge Cycle ................................................................................................................105
Interrupt Acknowledge Cycle Timing ...................................................................................................106
Software Halt Cycle ...............................................................................................................................107
Software Halt Cycle Timing ..................................................................................................................107
Clock – Active Mode .............................................................................................................................108
Clock – Power-Save Mode ....................................................................................................................108
Clock Timing .........................................................................................................................................108
srdy – Synchronous Ready.....................................................................................................................109
ardy - Asynchronous Ready ..................................................................................................................109
Peripherals..............................................................................................................................................109
Ready and Peripheral Timing.................................................................................................................109
Reset 1....................................................................................................................................................110
Reset 2....................................................................................................................................................110
Bus Hold Entering..................................................................................................................................111
Bus Hold Leaving ..................................................................................................................................111
Reset and Bus Hold Timing ...................................................................................................................111
Synchronous Serial Interface .................................................................................................................112
Synchronous Serial Interface Timing ....................................................................................................112
IA186EM 100-Pin PQFP ...........................................................................................................................113
IA186EM TQFP 100-Pin ...........................................................................................................................116
IA188EM 100-Pin PQFP ...........................................................................................................................119
IA188EM 100-Pin TQFP ...........................................................................................................................122
Physical Dimensions ..................................................................................................................................125
PQFP 100 ...............................................................................................................................................125
TQFP 100 .............................................................................................................................................127
Ordering Information......................................................................................................................128
Errata.......................................................................................................................................................129
3737 Princeton NE, Ste 130 • Albuquerque, NM 87107 • Tel 505.883.5263 • Fax 505.883.5477 • www.Innovasic.com