The PIC 12F508/509 block diagram Program memory Data bus for program memory, carrying instruction word Address extracted from instruction word Flash 512 x 12 or 1024 x 12 Program 12 Bus Literal data extracted from instruction word Program Memory OSC1/CLKIN OSC2 to Instruction Reg Instruction Instruction itself! Decode & K Control Timing Generation Internal RC OSC 12 Program Counter Address bus for program memory Stack 1 Stack 2 Direct Addr 5 Device Reset Timer Multiplexer Working register Power-on Reset MCLR Watchdog Timer VDD, VSS Key (See also Key to Figure 1.11) FSR: File Select Register MUX: W reg: GPIO: RC: H Data Bus RAM Addr 9 3 RAM 25 x 8 or 41x8 File Registers Addr MUX ALU 5-7 Addr FSR Reg Status Reg Indirect MUX W Reg Data memory 144 Timero L GPIO Input/ output GPO/SCPDAT GP1/SCPCLK GP2/TOCKI GP3/MCLR/WPP GP4/OSC2 GP5/OSC1/CLKIN Address bus for data memory Data bus for data memory and peripherals General-Purpose Input/Output Resistor capacitor The CPU

It is essential to explain the differences between Diagrams 0 and 1. Exists in the Context diagram any symbols that are not being utilised?

For a variable to be fully defined, its type and any other information it may have must be provided (and therefore complete). All variables, in another way of putting it, have not just a data type but also other qualities. To better describe the characteristics of each variable we encounter, please elaborate on the idea that will help us do so.

Explain what Systems Dynamics is all about using your own words by way of explanation. also Provide an explanation of a reinforcing loop using your own words as an example. Which fundamental equations serve as the foundation for systems dynamics?