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aLec13_exam1review - Introduction to Embedded Microcomputer...

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Introduction to Embedded Microcomputer Systems Lecture 13.1 Jonathan W. Valvano Exam 1 review closed book, no calculator Lectures 1-10 (no TCNT, no indexed, no arrays) HW1-4 Labs 1, 2, and 3 Problems o n old tests /HW you are not responsible for 1) Definitions (matching or multiple choice) volatile, nonvolatile, RAM, ROM, port, static efficiency, dynamic efficiency, structured program, call graph, data flow graph, basis, nibble, precision, decimal digits (see table below), fixed - point , overflow, ceiling and floor, drop out, bus, address bus, data bus, memory-mapped, I/O mapped, bus cycle, read cycle, write cycle, IR, EAR, BIU, CU, ALU, registers, device driver, reset vector, friendly, mask, toggle, 2 2 = 4 2 3 = 8 2 4 = 16 2 5 = 32 2 6 = 64 2 7 = 128 2 8 = 256 2 9 = 512 2 10 = 1024 10 3 2 11 = 2048 2 12 = 4096 2 13 = 8192 2 14 = 16384 2 15 = 32768 2 16 = 65536 16 2 = 256 16 3 = 4096 16 4 = 65536 decimal digits exact range exact alternatives ADC bits needed? 3 0 to 999 1,000 10 0 to 1999 2,000 11 0 to 3999 4,000 12 4 0 to 9999 10,000 14 0 to 19,999 20,000 15 0 to 39,999 40,000 16 5 0 to 99,999 100,000 17 0 to 199,999 200,000 18 0 to 399,999 400,000 19 6 0 to 999,999 1,000,000 20 0 to 199,999 2,000,000 21 0 to 3,999,999 4,000,000 22 N 0 to 10 N -1 10 N 0 to 2*10 N -1 2*10 N 0 to 4*10 N -1 4*10 N Standard definition of decimal digits. 2) Number conversions, 8-bit (fill in the blank) convert one format to another without a calculator signed decimal e.g., -56 unsigned decimal e.g., 200 binary e.g., %11001000 hexadecimal e.g., $C8 I won’t ask you to convert signed binary or signed hex: signed binary e.g., -%00101111 signed hexadecimal e.g., -$2F fixed -
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