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HD6432147SW Datasheet(PDF) 277 Page - Renesas Technology Corp |
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HD6432147SW Datasheet(HTML) 277 Page - Renesas Technology Corp |
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277 / 1177 page  Section 8 I/O Ports Rev. 4.00 Sep 27, 2006 page 233 of 1130 REJ09B0327-0400 8.4 Port 3 8.4.1 Overview Port 3 is an 8-bit I/O port. Port 3 pins also function as host data bus I/O pins (HDB7 to HDB0) (H8S/2148 Group and H8S/2147N only), and as data bus I/O pins. Port 3 functions change according to the operating mode. Port 3 has a built-in MOS input pull-up function that can be controlled by software. Figure 8.9 shows the port 3 pin configuration. P37/D15/HDB7 P36/D14/HDB6 P35/D13/HDB5 P34/D12/HDB4 P33/D11/HDB3 P32/D10/HDB2 P31/D9/HDB1 P30/D8/HDB0 Port 3 Port 3 pins D15 (I/O) D14 (I/O) D13 (I/O) D12 (I/O) D11 (I/O) D10 (I/O) D9 (I/O) D8 (I/O) Pin functions in modes 1, 2 and 3 (EXPE = 1) P37 (I/O)/HDB7 (I/O) P36 (I/O)/HDB6 (I/O) P35 (I/O)/HDB5 (I/O) P34 (I/O)/HDB4 (I/O) P33 (I/O)/HDB3 (I/O) P32 (I/O)/HDB2 (I/O) P31 (I/O)/HDB1 (I/O) P30 (I/O)/HDB0 (I/O) Pin functions in modes 2 and 3 (EXPE = 0) Figure 8.9 Port 3 Pin Functions |
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