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AM188ER-33KIW Fiches technique(PDF) 2 Page - Advanced Micro Devices |
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AM188ER-33KIW Fiches technique(HTML) 2 Page - Advanced Micro Devices |
2 / 112 page 2Am186TMER and Am188TMER Microcontrollers Data Sheet DRAF T Am186™ER MICROCONTROLLER BLOCK DIAGRAM Note: * All PIO signals are shared with other physical pins. See the pin descriptions beginning on page 30 and Table 3 on page 36 for information on shared functions. S2 Interrupt Control Unit Timer Control Unit DMA Unit Bus Interface Unit Execution Unit Chip-Select Unit Clock and Power Management Unit Control Registers 16-Bit Count Registers Max Count A Registers 16-Bit Count Registers 20-Bit Destination Pointers 20-Bit Source Pointers Control Registers Control Registers Control Registers 01 (WDT) 2 0 1 Max Count B Registers Refresh Control Unit Control Registers Control Registers Control Registers CLKOUTB CLKOUTA INT4 INT3/INTA1/IRQ INT2/INTA0 INT1/SELECT INT0 TMROUT0 TMROUT1 DRQ0 DRQ1 VCC GND TMRIN0 TMRIN1 ARDY SRDY DT/R DEN HOLD HLDA Asynchronous Serial Port Synchronous Serial Interface TXD RXD SCLK SDATA SDEN0 SDEN1 NMI A19–A0 AD15–AD0 ALE BHE/ADEN WR WLB WHB RD RES LCS/ONCE0 MCS2–MCS0 PCS6/A2 PCS3–PCS0 PCS5/A1 UCS/ONCE1 X2 X1 Control Registers PSRAM Control Unit MCS3/RFSH PIO Unit PIO31– PIO0* S6/ UZI/ CLKSEL2 CLKSEL1 32 Kbyte SRAM (16K x 16) S1/IMDIS S0/SREN Watchdog Timer (WDT) |
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