4th Generation USB 2.0 Flash Media Controller with Integrated Card Power FETs & HS Hub
Datasheet
Chapter 9 GPIO UsageTable 9.1 GPIO Usage (ROM Rev
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NAME | LEVEL | SYMBOL | DESCRIPTION AND NOTE |
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GPIO1 | H | Flash Media Activity LED/ | Indicates media activity. Media or USB |
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| xD_Door | cable must not be removed with LED lit. |
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| Also may be used for xD Door |
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| functionality. |
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GPIO2 | H | EE_CS | Serial EE PROM chip select. |
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GPIO3 | H | V_BUS | USB V bus detect. |
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GPIO4 | H | EE_DIN/EE_DOUT/xDID | Serial EE PROM input/output and xD |
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| Identify. |
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GPIO5 | H | HS_IND/SD_CD | HS Indicator LED or SD Card Detect |
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| Switch input. |
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GPIO6 | H | A16/ROMEN | A16 address line connect for DFU or |
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| debug LED indicator optional. |
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GPIO7 | H | EE_CLK/ | Serial EE PROM clock output or |
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| UNCONF_LED | Unconfigured LED. |
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GPIO8 | L | MS_PWR_CTRL/ | Memory Stick Card Power Control, or |
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| CRD_PWR0 | Internal Power FET0. |
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GPIO9 | L | CF_PWR_CTRL | CompactFlash Card Power Control. |
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GPIO10 | L | SM_PWR_CTRL/ | SmartMedia Card Power Control, or |
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| CRD_PWR1 | Internal Power FET1. |
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GPIO11 | L | SD/MMC_PWR_CTRL/ | SD/MMC Card Power Control, or |
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| CRD_PWR2 | Internal Power FET2. |
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GPIO12 | H | MS_ACT_IND/ | Memory Stick Activity Indicator, or |
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| Media Activity | Media Activity LED. |
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GPIO13 | H | CF_ACT_IND | CompactFlash Activity Indicator. |
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GPIO14 | H | SM_ACT_IND | SmartMedia Activity Indicator. |
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GPIO15 | H | SD/MMC_ACT_IND | SD/MMC Activity Indicator. |
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SMSC USB2601/USB2602 | 29 | Revision 1.6 |
| DATASHEET |
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