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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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AT89C5131A-RDTUM 데이터시트(PDF) 92 Page - ATMEL Corporation |
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AT89C5131A-RDTUM 데이터시트(HTML) 92 Page - ATMEL Corporation |
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92 / 188 page  92 4337K–USB–04/08 AT89C5130A/31A-M 18. Programmable LED AT89C5130A/31A-M have up to 4 programmable LED current sources, configured by the regis- ter LEDCON. Reset Value = 00h Table 18-1. LEDCON Register LEDCON (S:F1h) LED Control Register 7 6 5 4 3 2 1 0 LED3 LED2 LED1 LED0 Bit Number Bit Mnemonic Description 7:6 LED3 Port LED3 Configuration 0 0 Standard C51 Port 0 1 2 mA current source when P3.7 is low 1 0 4 mA current source when P3.7 is low 1 1 10 mA current source when P3.7 is low 5:4 LED2 Port /LED2 Configuration 0 0 Standard C51 Port 0 1 2 mA current source when P3.6 is low 1 0 4 mA current source when P3.6 is low 1 1 10 mA current source when P3.6 is low 3:2 LED1 Port/ LED1 Configuration 0 0 Standard C51 Port 0 1 2 mA current source when P3.5 is low 1 0 4 mA current source when P3.5 is low 1 1 10 mA current source when P3.5 is low 1:0 LED0 Port/ LED0 Configuration 0 0 Standard C51 Port 0 1 2 mA current source when P3.3 is low 1 0 4 mA current source when P3.3 is low 1 1 10 mA current source when P3.3 is low |
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