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C167CS Datasheet(PDF) 143 Page - Infineon Technologies AG |
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C167CS Datasheet(HTML) 143 Page - Infineon Technologies AG |
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143 / 517 page  C167CS Derivatives Parallel Ports User’s Manual 7-16 V2.0, 2000-07 7.5 PORT1 The two 8-bit ports P1H and P1L represent the higher and lower part of PORT1, respectively. Both halfs of PORT1 can be written (e.g. via a PEC transfer) without effecting the other half. If this port is used for general purpose IO, the direction of each line can be configured via the corresponding direction registers DP1H and DP1L. P1L PORT1 Low Register SFR (FF04H/82H) Reset Value: - - 00H 15 14 13 12 11 10 98765 43210 P1L .7 P1L 6 P1L .5 P1L .4 P1L .3 P1L .2 P1L .1 P1L .0 - - - - - - - - rw rw rw rw rw rw rw rw P1H PORT1 High Register SFR (FF06H/83H) Reset Value: - - 00H 15 14 13 12 11 10 98765 43210 P1H .7 P1H .6 P1H .5 P1H .4 P1H .3 P1H .2 P1H .1 P1H .0 - - - - - - - - rwh rwh rwh rwh rw rw rw rw Bit Function P1X.y Port data register P1H or P1L bit y |
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