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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MPC821 датащи(PDF) 141 Page - NXP Semiconductors |
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MPC821 датащи(HTML) 141 Page - NXP Semiconductors |
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141 / 242 page  Support Information MPC8XXFADS Design Specification—Rev 0.1 PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE "****************************************************************************** "* Pins declaration. * "****************************************************************************** "****************************************************************************** "* clock generator "****************************************************************************** SYSCLKPIN 50;" pda clkout "****************************************************************************** "* Dram Associated Pins. "****************************************************************************** A9 PIN 55; A10 PIN 39; A19 PIN 38; A20 PIN 2; A30 PIN 36;" pda address lines inputs (IN) R_W~ PIN 23; SizeDetect1PIN 26; SizeDetect0PIN 20; " dram simm size detect lines (IN) HalfWord~PIN 51; " dram port width selection from control register: " '1' - 32 bit " '0' - 16 bit DramBank1Cs~PIN 45;" 1'st bank chip-select(IN, L) DramBank2Cs~PIN 46;" 2'nd bank chip-select (IN, L) DramEn~PIN 54;" Dram enable from control reg. (IN, H). Active " high to support power control. DramAdd10PIN 32 istype 'com'; DramAdd9PIN 33 istype 'com';" dram address lines Ras1~PIN 28 istype 'com'; Ras1DD~PIN 30 istype 'com'; Ras2~PIN 29 istype 'com'; Ras2DD~PIN 31 istype 'com';" dram RAS lines. Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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