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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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H8S/2218 Scheda tecnica(PDF) 275 Page - Renesas Technology Corp |
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H8S/2218 Scheda tecnica(HTML) 275 Page - Renesas Technology Corp |
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275 / 750 page  Section 8 I/O Ports Rev.6.00 Jun. 03, 2008 Page 227 of 698 REJ09B0074-0600 8.3 Port 4 The port 4 is a 4-bit input port also functioning as A/D converter analog input pins. The port 4 of the H8S/2218 Group has the same function as that of the H8S/2212 Group. The port 4 has the following register. • Port 4 register (PORT4) 8.3.1 Port 4 Register (PORT4) PORT4 indicates the pin states of the port 4. Bit Bit Name Initial Value R/W Description 7 to 4 ⎯ Undefined ⎯ Reserved These bits are undefined. 3 2 1 0 P43 P42 P41 P40 ⎯* ⎯* ⎯* ⎯* R R R R The pin states are always read when these bits are read. Note: * Determined by the states of pins P43 to P40. 8.3.2 Pin Function The port 4 also functions as A/D converter analog input (AN3 to AN0) pins. |
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