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AS8218 Fiches technique(PDF) 57 Page - ams AG |
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AS8218 Fiches technique(HTML) 57 Page - ams AG |
57 / 123 page Data Sheet AS8218 / AS8228 Revision 3.0, 31-May-06 Page 57 of 123 SET_EN0/SET_EN1 (9505h/9506h) The SET_EN registers set the en_io signal of the related I/O pin. The en_io enables the tri-state output buffer so that the I/O pins operate as outputs. IOx: 0: disable output (I/O used as input) 1: enable output SET_EN0 MSB LSB IO7 IO6 IO5 IO4 IO3 IO2 IO1 IO0 SET_EN1 MSB LSB 0 0 0 0 IO11 IO10 IO9 IO8 AS8228 only SEL_DRV0/SEL_DRV1 (9507h/9508h) The SEL_DRV registers select the current drive strength for all the I/Os that have been selected as outputs: IOx: 0: 4mA 1: 8mA SEL_DRV0 MSB LSB IO7 IO6 IO5 IO4 IO3 IO2 IO1 IO0 SEL_DRV1 MSB LSB 0 0 0 0 IO11 IO10 IO9 IO8 AS8228 only SEL_PUPD0/SEL_PUPD1 (9509h/950Ah) The SEL_PUPD registers select either a pull-up or pull-down resistor for each of the I/O pins: IOx: 0: pull-down 1: pull-up SEL_PUPD0 MSB LSB IO7 IO6 IO5 IO4 IO3 IO2 IO1 IO0 SEL_PUPD1 MSB LSB 0 0 0 0 IO11 IO10 IO9 IO8 AS8228 only |
Numéro de pièce similaire - AS8218_1 |
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Description similaire - AS8218_1 |
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