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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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HD64F2149YV 数据表(PDF) 292 Page - Renesas Technology Corp |
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HD64F2149YV 数据表(HTML) 292 Page - Renesas Technology Corp |
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292 / 1075 page  Section 8 I/O Ports Rev. 3.00 Jan 18, 2006 page 264 of 1044 REJ09B0280-0300 Pin Selection Method and Pin Functions PB0/D0/ WUE0/ HIRQ3/ LSMI The pin function is switched as shown below according to the combination of the operating mode, bits HI12E and CS3E in SYSCR2, bit ABW in WSCR, and bit PB0DDR. Operating mode Mode 1, modes 2 and 3 (EXPE = 1) Modes 2, 3 (EXPE = 0) LSMIE — 01 HI12E — 1 —* CS3E — Either cleared to 0 1 —* ABW 0 1 —— — PB0DDR — 01 011 —* Pin function D0 I/O pin PB0 input pin PB0 output pin PB0 input pin PB0 output pin HIRQ3 output pin LSMI output pin LSMI input pin WUE0 input pin Note: * When bit LSCIE is set to 1 in HICR0, bits HI12E and PB0DDR should be cleared to 0. Except when used as a data bus pin, this pin can always be used as the WUE0 input pin. The HIRQ3 output pin and LSMI I/O pin can only be used in mode 2 or 3 (EXPE = 0). |
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