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R8C/2G 数据表(PDF) 178 Page - Renesas Technology Corp |
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R8C/2G 数据表(HTML) 178 Page - Renesas Technology Corp |
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178 / 344 page ![]() R8C/2G Group 17. Timers Rev.1.00 Apr 04, 2008 Page 158 of 318 REJ09B0387-0100 Figure 17.10 TRAIOC Register in Pulse Period Measurement Mode Timer RA I/O Control Register Symbol Address After Reset TRAIOC 0101h 00h Bit Symbol Bit Name Function RW INT1 _____ /TRAIO select bit 0 : INT1 _____ /TRAIO pin (P1_7) 1 : INT1 _____ /TRAIO pin (P1_5) NOTE: 1. — (b7-b6) Nothing is assigned. If necessary, set to 0. When read, the content is 0. TRAO output enable bit TRAIO input filter select bits(1) b5 b4 0 0 : No filter 0 1 : Filter w ith f1 sampling 1 0 : Filter w ith f8 sampling 1 1 : Filter w ith f32 sampling Set to 0 in pulse period measurement mode. TEDGSEL RW TRAIO polarity sw itch bit — TOPCR RW TOENA RW RW TIPF0 RW TRAIO output control bit TIPF1 b7 b6 b5 b4 When the same value from the TRAIO pin is sampled three times continuously, the input is determined. b3 b2 TIOSEL b1 b0 0 : Measures measurement pulse from one rising edge to next rising edge 1 : Measures measurement pulse from one falling edge to next falling edge 0 0 |
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