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USB2240 数据表(PDF) 20 Page - SMSC Corporation |
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USB2240 数据表(HTML) 20 Page - SMSC Corporation |
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20 / 28 page ![]() Note: xD signals apply only to USB2240. 21 GPIO10/CARD_PWR GPIO z-- -- GPIO (fw) (fw) (fw) PWR VDD -- -- 28 TEST TEST z-- yes TEST z -- yes 18 nRESET nRESET z-- yes nRESET z -- yes 1 GPIO1 (LED1) GPIO1 0-- -- GPIO (fw) (fw) (fw) 16 xD_nRE none z-- -- xD_nRE hw (fw) -- none z-- -- none z-- -- 12 xD_nWE none z-- -- xD_nWE hw (fw) -- none z-- -- none z-- -- 17 xD_nB/R none z-- -- xD _nBR z (fw) yes none z-- -- none z-- -- 15 xD_nCE none z-- -- xD_nCE hw (fw) -- none z-- -- none z-- -- 2 USB+ USB+ z-- -- USB+ z hw hw 3 USB- USB- z-- -- USB- z hw hw 35 RBIAS 33 XTAL1 (CLKIN) 32 XTAL2 Table 6.1 USB2240/USB2241 36-Pin Reset States Table (continued) RESET STATE Post-Reset State xD Mode Post-Reset State SD Mode Post-Reset State MS Mode PIN PIN NAME FUNCTION OUT- PUT PU/ PD IN- PUT FUNCTION OUT- PUT PU/ PD IN- PUT FUNCTION OUT- PUT PU/ PD IN- PUT FUNCTION OUT- PUT PU/ PD IN- PUT |
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