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BU1850MUV 데이터시트(PDF) 9 Page - Rohm |
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BU1850MUV 데이터시트(HTML) 9 Page - Rohm |
9 / 18 page Technical Note 9/17 BU1850MUV www.rohm.com 2009.09 - Rev.A © 2009 ROHM Co., Ltd. All rights reserved. 3. Register configuration The address is increased one by one when data is continuously written. When the final address is set to 13h, then the next address 00h will be written. By making XRST “Low”, the setting register value will be initialed shown in following register map. 3-1 Register map Addr Init Type D7 D6 D5 D4 D3 D2 D1 D0 00h - - reserved reserved reserved reserved reserved reserved reserved reserved 01h - - reserved reserved reserved reserved reserved reserved reserved reserved 02h - - reserved reserved reserved reserved reserved reserved reserved reserved 03h - - reserved reserved reserved reserved reserved reserved reserved reserved 04h 00h R/W RESET reserved reserved reserved reserved reserved reserved reserved 05h - - reserved reserved reserved reserved reserved reserved reserved reserved 06h - - reserved reserved reserved reserved reserved reserved reserved reserved 07h - - reserved reserved reserved reserved reserved reserved reserved reserved 08h 00h R/W INTEN7 INTEN6 INTEN5 INTEN4 INTEN3 INTEN2 INTEN1 INTEN0 09h - - reserved reserved reserved reserved reserved reserved reserved reserved 0Ah - - reserved reserved reserved reserved reserved reserved reserved reserved 0Bh - - reserved reserved reserved reserved reserved reserved reserved reserved 0Ch - - reserved reserved reserved reserved reserved reserved reserved reserved 0Dh - - reserved reserved reserved reserved reserved reserved reserved reserved 0Eh - - reserved reserved reserved reserved reserved reserved reserved reserved 0Fh - - reserved reserved reserved reserved reserved reserved reserved reserved 10h 00h R GPI7 GPI6 GPI5 GPI4 GPI3 GPI2 GPI1 GPI0 11h 00h R/W GPO7 GPO6 GPO5 GPO4 GPO3 GPO2 GPO1 GPO0 12h 00h R/W WRSEL7 WRSEL6 WRSEL5 WRSEL4 WRSEL3 WRSEL2 WRSEL1 WRSEL0 13h 00h R/W XPD7 XPD6 XPD5 XPD4 XPD3 XPD2 XPD1 XPD0 ※ Do not write reserved resisters excluding "0". 10h address register is disregarded even if it is written. 3-2 Resister function ※ n is the number of GPIO[7:0] ports. Symbol Addr Description RESET 04h The register is returned to an initial value by writing "1". This register value is returned to "0". GPIn register is not initialized. INTENn 08h Interrupt of GPIOn port is enabled by "1". It is masked by "0". GPIn 10h Read GPIOn port. Writing is disregarded. GPOn 11h Output value of GPIOn port. WRSELn 12h GPIOn port is input by "0" and output by "1". XPDn 13h Pull-down of GPIOn port is on by "0" and off by "1". GPIOn should be input. |
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