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H8S2245 Datasheet(PDF) 276 Page - Renesas Technology Corp |
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H8S2245 Datasheet(HTML) 276 Page - Renesas Technology Corp |
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276 / 818 page  Section 8 I/O Ports Rev.3.00 Mar. 26, 2007 Page 234 of 772 REJ09B0355-0300 8.5 Port 4 8.5.1 Overview Port 4 is an 8-bit input-only port. Port 4 pins also function as A/D converter analog input pins (AN0 to AN3). Port 4 pin functions are the same in all operating modes. Figure 8.4 shows the port 4 pin configuration. P43 P42 P41 P40 (input)/ (input)/ (input)/ (input)/ AN3 AN2 AN1 AN0 (input) (input) (input) (input) Port 4 pins Port 4 Figure 8.4 Port 4 Pin Functions 8.5.2 Register Configuration Table 8.8 shows the port 4 register configuration. Port 4 is an input-only port, and does not have a data direction register or data register. Table 8.8 Port 4 Registers Name Abbreviation R/W Initial Value Address* Port 4 register PORT4 R Undefined H'FF53 Note: * Lower 16 bits of the address. |
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