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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) 291 Page - Renesas Technology Corp |
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HD64F2149YV 数据表(HTML) 291 Page - Renesas Technology Corp |
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291 / 1075 page  Section 8 I/O Ports Rev. 3.00 Jan 18, 2006 page 263 of 1044 REJ09B0280-0300 Pin Selection Method and Pin Functions PB1/D1/ WUE1/ HIRQ4/LSCI The pin function is switched as shown below according to the combination of the operating mode, bits HI12E and CS4E in SYSCR2, bit ABW in WSCR, and bit PB1DDR. Operating mode Mode 1, modes 2 and 3 (EXPE = 1) Modes 2, 3 (EXPE = 0) LSCIE — 01 HI12E — 1 —* CS4E — Either cleared to 0 1 — ABW 0 1 —— — PB1DDR — 01 011 —* Pin function D1 I/O pin PB1 input pin PB1 output pin PB1 input pin PB1 output pin HIRQ4 output pin LSCI output pin LSCI input pin WUE1 input pin Note: * When bit LSCIE is set to 1 in HICR0, bits HI12E and PB1DDR should be cleared to 0. Except when used as a data bus pin, this pin can always be used as the WUE1 input pin. The HIRQ4 output pin and LSCI I/O pin can only be used in mode 2 or 3 (EXPE = 0). |
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