Ultra Fast USB 2.0 SD/MMC Flash Media Controller
Datasheet
6.136-Pin Reset States
Table 6.1 USB2244/USB2244i Pin Reset States
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| RESET STATE |
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| SD Mode |
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PIN |
| PIN NAME |
| FUNCTION |
| OUT- | PU/ | IN- |
| FUNCTION | OUT- | PU/ | IN- |
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| PUT | PD | PUT |
| PUT | PD | PUT |
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8 |
| SD_D6 |
| none |
| z |
| SD_D6 |
| hw | pu | yes |
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7 |
| SD_D7 |
| none |
| z |
| SD_D7 |
| hw | pu | yes |
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5 |
| SD_D0 |
| none |
| z |
| SD_D0 |
| hw | pu | yes |
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4 |
| SD_D1 |
| none |
| z |
| SD_D1 |
| hw | pu | yes |
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30 |
| SD_WP |
| SD_WP |
| 0 |
| SD_WP |
| (fw) | (fw) | (fw) |
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25 |
| SD_D2 |
| none |
| z |
| SD_D2 |
| hw | pu | yes |
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23 |
| SD_D3 |
| none |
| z |
| SD_D3 |
| hw | pu | yes |
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20 |
| SD_D4 |
| none |
| z |
| SD_D4 |
| hw | pu | yes |
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9 |
| SD_CLK |
| none |
| z |
| SD_CLK |
| hw | yes |
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10 |
| SD_D5 |
| none |
| z |
| SD_D5 |
| hw | pu | yes |
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11 |
| SD_CMD |
| none |
| z |
| SD_CMD |
| hw | pu | yes |
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19 |
| GPIO14 |
| GPIO |
| z | pu | yes |
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26 |
| GPIO15 (SD_nCD) |
| GPIO |
| z | pu | yes |
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24 |
| GPIO12 |
| GPIO |
| z | pu | yes |
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27 |
| GPIO2 / RXD / SDA |
| GPIO |
| 0 |
| RXD |
| z | pu | yes |
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29 |
| GPIO4 |
| GPIO |
| 0 |
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31 |
| GPIO7 / TXD / SCK |
| GPIO |
| 0 |
| TXD |
| hw |
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21 |
| GPIO10(CARD_PWR) |
| GPIO |
| z |
| PWR |
| VDD |
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28 |
| TEST |
| TEST |
| z | yes |
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18 |
| nRESET |
| nRESET |
| z | yes |
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1 |
| GPIO1 (LED1) |
| GPIO1 |
| 0 |
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17:15 |
| NC |
| none |
| z |
| none |
| z |
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12 |
| NC |
| none |
| z |
| none |
| z |
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2 |
| USB+ |
| USB+ |
| z |
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3 |
| USB- |
| USB- |
| z |
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35 |
| RBIAS |
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33 |
| XTAL1 (CLKIN) |
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32 |
| XTAL2 |
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Revision 1.0 | 14 | SMSC USB2244/USB2244i |
DATASHEET