Ultra Fast USB 2.0 Memory Stick Flash Media Controller
Datasheet
Chapter 10 GPIO Usage
Table 10.1 USB2242/USB2242i GPIO Usage (ROM Rev 0x00)
NAME | ACTIVE LEVEL | SYMBOL | DESCRIPTION AND NOTE |
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GPIO1 | H | LED1 | LED indicator |
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|
|
|
GPIO2 | H | RXD / SDA | Receive Port of Debugger / Serial |
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|
| EEPROM Data |
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|
|
|
GPIO4 | USER | GPIO | User defined |
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|
|
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GPIO7 | H | TXD / SCK / MS_SKT_SEL | Transmit Port of Debugger / Serial |
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|
| EEPROM Clock / Memory Stick Socket |
|
|
| (1 = 8 bit; 0 = 4 bit) |
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|
|
|
GPIO10 | L | CRD_PWR | Card Power Control |
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|
|
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GPIO12 | L | MS_INS | Memory Stick Card Insertion |
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|
|
|
GPIO14 | USER | GPIO | User defined |
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|
|
|
GPIO15 | USER | GPIO | User defined |
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SMSC USB2242/USB2242i | 23 | Revision 1.0 |
DATASHEET