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USB97C242 Datasheet(PDF) 21 Page - SMSC Corporation |
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USB97C242 Datasheet(HTML) 21 Page - SMSC Corporation |
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21 / 22 page  USB 2.0 Flash Drive Controller Datasheet SMSC USB97C242 Page 21 Revision 1.4 (02-16-06) DATASHEET Chapter 11 GPIO Usage Table Table 11.1 - GPIO Usage NAME ACTIVE LEVEL SYMBOL DESCRIPTION AND NOTE GPIO1 H Flash Media Activity LED Indicates media activity. Media or USB cable must not be removed with LED lit. Active High. GPIO2 H Ready/Busy# 1/4 Ready/Busy# line from NAND Flash chips 0, or 0 & 4 GPIO3 H V_BUS USB V bus dectect GPIO4 H Ready/Busy# for Chips 1/5 Ready/Busy# line from NAND Flash chips 1, or 1 & 5 GPIO5 H HS_IND/Ready/Busy# 2/6 In Rom -03; HS_LED output indicator; in later ROM patterns, the Ready/Busy# line from NAND Flash chips 2, or 2 & 6 GPIO6 H A16 A16 address line when external Rom is used; unused output otherwise. GPIO7 H Ready/Busy# 3/7 Ready/Busy# line from NAND Flash chips 3, or 3 & 7 |
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