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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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GMS36 датащи(PDF) 65 Page - Hynix Semiconductor |
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GMS36 датащи(HTML) 65 Page - Hynix Semiconductor |
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65 / 109 page  6-1 Guideline for S/W 1. All rams need to be initialized to zero in reset address for proper design. 2. Make the output ports `H` after reset. 3. Do not use WDTR instruction in subroutine. 4. Before reading the input port the waiting time should be more than 200uS. 5. To decrease current consumption, make the output port as high in normal routine except for key scan strobe and STOP mode. 6. We recommend you do not use all 64 bytes in a page. You had better write ` BR $` in unused area. This will help you prevent unusual operation of MCU. 7. Be careful not to use long call or branch (CALL,BL) with arithmetic manipulation. If you want to use branch right after arithmetic manipulation, the long call or branch will be against your intention. ex) LAR ; The value of R ports -> Accumulator ALEI 14 ; A õ14 : S = 1, A 14 : S = 0 BL TRUE ; S is always 1 because BL is composed of LPBI and BR. -------------- Fail LAR ; The value of R ports -> Accumulator ALEI 14 ; A õ14 : S = 1, A 14 : S = 0 BR TRUE ; When S is 1 Branch will occur. Otherwise Branch will not occur and LAK ; next instruction will be operated. -------------- Right Chapter 6. Application |
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