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ST52T410G2D6 Datasheet(PDF) 8 Page - STMicroelectronics |
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ST52T410G2D6 Datasheet(HTML) 8 Page - STMicroelectronics |
8 / 84 page ST52T410/T420/E420 8/84 When this phase starts, the ST52T410/ST52x420 core are set to RESET status; then 12V are applied t o t h e V p p pi n i n o rder t o s t art E P R O M programming. A signal applied to PB1 is used to increm ent th e m emory address; the da ta i s supplied to PORT A (see EPROM programming for further details). 1.2.2 Working mode. Below are the control signals of this mode: The processor starts the working phase following the instructions, which have been previously loaded in the memory. ST52T410/ST52x420’s internal structure includes a computational block, CONTROL UNIT (CU) / DATA PROCESSING UNIT (DPU), which allows p roc essi ng of bo ol ea n fun ctio ns a nd fu zzy algorithms. The CU/DPU can manage up to 334 different M e m bersh i p F unc ti ons fo r the f u zz y rul es antecedent part. The rule consequents are “crisp” values (real numbers). The maximum number of rul es tha t can be defined i s l im ite d b y the d i m e ns i o ns o f th e i m p l e m e n t ed s t an da rd algorithm. EPR OM i s th en sh are d be tw ee n fuzzy an d standard algorithms. The Membership Function data is stored inside the fi rst 1024 mem ory locations. The Fuzzy rules are parts of the program instructions. The Control Unit (CU) reads the information and the status deriving from the peripherals. Arithmetic calculus can be performed on these values by using the internal CU and the 128 bytes of RAM, which supports all computations. The peripheral input can be fuzzy and/or arithmetic output, or the values contained in Data RAM and EPROM locations. Figure 1.1 ST52x420 SO28 Pin Configuration RESET TEST VPP VDD VSS VSS RESET OSCOUT OSCIN TEST INT/PC0 T0OUT/PC1 T1OUT/PC2 T2OUT/PC3 Ain0/PB0 Ain1/PB1 Ain2/PB2 Ain3/PB3 VDDA GNDA VDD VSS VPP PA0/T0RES PA1/T0OUT PA2/T1OUT PA3/T2OUT PA4/T0STRT PA5/T0CLK PA6 PA7/PB7/Ain7 PB6/Ain6 PB5/Ain5 PB4/Ain4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 SO28 |
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