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C167CS Datasheet(PDF) 155 Page - Infineon Technologies AG |
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C167CS Datasheet(HTML) 155 Page - Infineon Technologies AG |
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155 / 517 page ![]() C167CS Derivatives Parallel Ports User’s Manual 7-28 V2.0, 2000-07 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 (pins P3.15 and P3.12 do not support open drain mode!). P3 Port 3 Data Register SFR (FFC4H/E2H) Reset Value: 0000H 15 14 13 12 11 10 98765 43210 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 (FFC6H/E3H) Reset Value: 0000H 15 14 13 12 11 10 98765 43210 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 |
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