High Performance Two Port 10/100 Managed Ethernet Switch with
Datasheet
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| DESCRIPTION |
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| TYPE | DEFAULT | |
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12 | GPIO 8 Clock Event Polarity (GPIO_EVENT_POL_8) |
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| R/W | 1b | |||
| This bit determines if the 1588 clock event output on GPIO 8 is active high |
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| or low. |
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| 0: 1588 clock event output active low |
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| 1: 1588 clock event output active high |
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11:0 | GPIO Buffer Type |
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| R/W | 0h | |||
| This field sets the buffer types of the 12 GPIO pins. |
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| 0: Corresponding GPIO pin configured as an |
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| 1: Corresponding GPIO pin configured as a push/pull driver |
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| As an |
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| data register is cleared, and is not driven when the corresponding data |
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| register is set. |
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| As an |
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| GPIO_EVENT_POL_8 and GPIO_EVENT_POL_9 bits determine when the |
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| corresponding pin is driven per the following table: |
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| GPIOx Clock Event Polarity | 1588 Clock Event |
| Pin State |
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| 0 | no |
| not driven |
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| 0 | yes |
| driven low |
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| 1 | no |
| driven low |
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| 1 | yes |
| not driven |
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SMSC LAN9312 | 193 | Revision 1.4 |
| DATASHEET |
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