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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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UPD62AMC датащи(PDF) 10 Page - NEC |
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UPD62AMC датащи(HTML) 10 Page - NEC |
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10 / 62 page  10 µPD62A Data Sheet U14474EJ1V0DS00 2.4 Program Memory (ROM): 512 steps × 10 bits The ROM consists of 10 bits per step, and is addressed by the program counter. The program memory stores programs and table data, etc. The 22 steps from 3EAH to 3FFH cannot be used in the test program area. Figure 2-3. Program Memory Map 000H 0FFH 100H 1FFH 10 bits Unmounted areaNote 3EAH 3FFH Test program areaNote 200H 3E9H Note The unmounted area and the test program area are so designed that a program or data placed in either of them by mistake is returned to the 000H address. 2.5 Data Memory (RAM): 32 × 4 Bits The data memory, which is a static RAM consisting of 32 × 4 bits, is used to retain processed data. The data memory is sometimes processed in 8-bit units. R0 can be used as the ROM data pointer. RF is also used as the ASR. When reset, R0 is cleared to “00H” and R1 to RF retain the previous data (undefined upon power application). |
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