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C161 Datasheet(PDF) 145 Page - Infineon Technologies AG |
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C161 Datasheet(HTML) 145 Page - Infineon Technologies AG |
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145 / 400 page  &3, 3DUDOOHO 3RUWV User’s Manual 7-19 1999-08 7.7 Port 3 If this 15-bit port is used for general purpose IO, the direction of each line can be configured via the corresponding direction register DP3. Most port lines can be switched into push/pull or open drain mode via the open drain control register ODP3. P3 3RUW 'DWD 5HJLVWHU SFR (FFC4 H/E2H) Reset Value: 0000 H 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 P3 .15 - P3 .13 P3 .12 P3 .11 P3 .10 P3.9 P3.8 P3.7 P3.6 P3.5 P3.4 P3.3 P3.2 P3.1 P3.0 rw - rw rw rw rw rw rw rw rw rw rw rw rw rw rw Bit Function P3.y Port data register P3 bit y DP3 P3 Direction Ctrl. Register SFR (FFC6 H/E3H) Reset Value: 0000 H 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 DP3 .15 - DP3 .13 DP3 .12 DP3 .11 DP3 .10 DP3 .9 DP3 .8 DP3 .7 DP3 .6 DP3 .5 DP3 .4 DP3 .3 DP3 .2 DP3 .1 DP3 .0 rw - rw rw rw rw rw rw rw rw rw rw rw rw rw rw Bit Function DP3.y Port direction register DP3 bit y DP3.y = 0: Port line P3.y is an input (high-impedance) DP3.y = 1: Port line P3.y is an output ODP3 3 2SHQ'UDLQ &WUO 5HJ ESFR (F1C6 H/E3H) Reset Value: 0000 H 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 -- ODP 3 .13 - ODP 3 .11 ODP 3 .10 ODP 3 .9 ODP 3 .8 ODP 3 .7 ODP 3 .6 ODP 3 .5 ODP 3 .4 ODP 3 .3 ODP 3 .2 -- - - rw - rw rw rw rw rw rw rw rw rw rw - - Bit Function ODP3.y Port 3 Open Drain control register bit y ODP3.y = 0: Port line P3.y output driver in push/pull mode ODP3.y = 1: Port line P3.y output driver in open drain mode |
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