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AM188ER-40KIW Arkusz danych(PDF) 7 Page - Advanced Micro Devices |
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AM188ER-40KIW Arkusz danych(HTML) 7 Page - Advanced Micro Devices |
7 / 112 page Am186TMER and Am188TMER Microcontrollers Data Sheet 7 DRAF T DRAF T Chip-Select Unit ......................................................................................................................... 49 Chip-Select Timing ......................................................................................................... 49 Ready and Wait-State Programming ............................................................................. 49 Memory Maps ................................................................................................................ 50 Chip-Select Overlap ....................................................................................................... 51 Upper Memory Chip Select ............................................................................................ 51 Low Memory Chip Select ............................................................................................... 51 Midrange Memory Chip Selects ..................................................................................... 51 Peripheral Chip Selects ................................................................................................. 52 Internal Memory ......................................................................................................................... 52 Interaction with External RAM ........................................................................................ 52 Emulator and Debug Modes .......................................................................................... 52 Refresh Control Unit .................................................................................................................. 53 Interrupt Control Unit ................................................................................................................. 53 Programming the Interrupt Control Unit ......................................................................... 53 Timer Control Unit ...................................................................................................................... 53 Watchdog Timer ........................................................................................................................ 54 Direct Memory Access ............................................................................................................... 54 DMA Operation .............................................................................................................. 55 Asynchronous Serial Port/DMA Transfers ..................................................................... 55 DMA Channel Control Registers .................................................................................... 55 DMA Priority ...................................................................................................................55 Asynchronous Serial Port .......................................................................................................... 56 DMA Transfers through the Serial Port .......................................................................... 56 Synchronous Serial Interface ..................................................................................................... 56 Four-Pin Interface .......................................................................................................... 57 Programmable I/O (PIO) Pins ....................................................................................................57 Low-Voltage Operation .............................................................................................................. 59 Low-Voltage Standard ................................................................................................... 59 Power Savings ............................................................................................................... 59 Input/Output Circuitry ..................................................................................................... 59 Absolute Maximum Ratings .......................................................................................................60 Operating Ranges ...................................................................................................................... 60 DC Characteristics Over Commercial and Industrial Operating Ranges ................................... 60 Thermal Characteristics ............................................................................................................. 61 TQFP Package .............................................................................................................. 61 Typical Ambient Temperatures ...................................................................................... 62 Commercial and Industrial Switching Characteristics and Waveforms ...................................... 67 Key to Switching Waveforms ......................................................................................... 67 Alphabetical Key to Switching Parameter Symbols ....................................................... 68 Numerical Key to Switching Parameter Symbols .......................................................... 69 Switching Characteristics over Commercial and Industrial Operating Ranges, Read Cycle (25 MHz and 33 MHz) ................................................................................ 70 Switching Characteristics over Commercial and Industrial Operating Ranges, Read Cycle (40 MHz and 50 MHz) ................................................................................ 71 Read Cycle Waveforms ................................................................................................. 72 Switching Characteristics over Commercial and Industrial Operating Ranges, Write Cycle (25 MHz and 33 MHz) ................................................................................ 73 Switching Characteristics over Commercial and Industrial Operating Ranges, Write Cycle (40 MHz and 50 MHz) ................................................................................ 74 Write Cycle Waveforms ................................................................................................. 75 Switching Characteristics over Commercial and Industrial Operating Ranges, Internal RAM Show Read Cycle (25 MHz and 33 MHz) ................................................ 76 |
Podobny numer części - AM188ER-40KIW |
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Podobny opis - AM188ER-40KIW |
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