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H8S/2240 数据表(PDF) 317 Page - Renesas Technology Corp |
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H8S/2240 数据表(HTML) 317 Page - Renesas Technology Corp |
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317 / 818 page  Section 8 I/O Ports Rev.3.00 Mar. 26, 2007 Page 275 of 772 REJ09B0355-0300 Pin Selection Method and Pin Functions PF 4/HWR The pin function is switched as shown below according to the operating mode and bit PF4DDR. Operating Mode Modes 1, 2, 4, 5, 6* Modes 3 and 7* PF4DDR — 01 Pin function HWR output pin PF 4 input pin PF 4 output pin Note: * Modes 2, 3, 6, and 7 cannot be used in the H8S/2240. PF 3/LWR/IRQ3 The pin function is switched as shown below according to the operating mode and bit PF3DDR. Operating Mode Modes 1, 2, 4, 5, 6* 2 Modes 3 and 7* 2 PF3DDR — 01 Pin function LWR output pin PF 3 input pin PF 3 output pin IRQ3 interrupt input pin*1 Notes: 1. When this pin is used as an external interrupt input, it should not be used as an input/output pin with other functions. 2. Modes 2, 3, 6, and 7 cannot be used in the H8S/2240. PF 2/WAIT/ BREQO/IRQ2 The pin function is switched as shown below according to the operating mode, and the BREQOE bit, WAITE bit in BCRL, and PF2DDR bit. Operating Mode Modes 1, 2, 4, 5, 6* 2 Modes 3 and 7* 2 BREQOE 0 1 — WAITE 0 1 —— PF2DDR 0 1 —— 01 Pin function PF 2 input pin PF 2 output pin WAIT input pin BREQO output pin PF 2 input pin PF 2 output pin IRQ2 interrupt input pin*1 Notes: 1. When this pin is used as an external interrupt input, it should not be used as an input/output pin with other functions. 2. Modes 2, 3, 6, and 7 cannot be used in the H8S/2240. |
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