TSXP573623 DOUBLE-FORMAT PL7 PROCESSOR Schneider

It is the core of the arithmetic machine. You can perform arithmetic operations (including basic operations such as addition and subtraction multipliers and their additional operations) and logical operations (including shifts, logic tests, or comparisons between two values). Relative to the control unit, the arithmetic device accepts the command of the control unit and acts, that is, all the operations carried out by the arithmetic unit are commanded by the control signal issued by the control unit, so it is the executive part.
Memory cell
Including CPU on-chip cache and register group, is a temporary storage of data in the CPU, which holds the data waiting for processing, or has been processed data, the CPU to access the register time is shorter than the time to access memory. The use of registers can reduce the number of times the CPU accesses the memory, thus improving the working speed of the CPU. However, due to the limited chip area and integration degree, the capacity of the register group cannot be very large. Register groups can be divided into registers and general registers. The function of the register is fixed, respectively storing the corresponding data. General purpose registers are versatile and can be specified by the programmer, and the number of general purpose registers varies from microprocessor to microprocessor