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ST10F296 Datasheet(PDF) 130 Page - STMicroelectronics |
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ST10F296 Datasheet(HTML) 130 Page - STMicroelectronics |
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130 / 346 page  Obsolete Product(s) - Obsolete Product(s) Parallel ports ST10F296E 130/346 13.3 Port 1 The two 8-bit ports P1H and P1L represent the higher and lower part of Port 1, respectively. Both halves of Port 1 can be written (for example via a PEC transfer) without effecting the other half. If this port is used for general purpose I/O, the direction of each line can be configured via the corresponding direction registers DP1H and DP1L. 13.3.1 Port 1 registers P1L and P1H registers P1L (FF04h/82h) SFR Reset value: --00h 15 14 13 12 11 10 987 65432 10 Reserved 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 (FF06h/83h) SFR Reset value: --00h 15 14 13 12 11 10 987 65432 10 Reserved P1H .7 P1H .6 P1H .5 P1H .4 P1H .3 P1H .2 P1H .1 P1H .0 - RW RW RW RW RW RW RW RW Table 69. P1L and P1H register description Bit Bit name Function 15-8 - Reserved 7-0 P1X.y Port data register P1L or P1H or bit y Obsolete Product(s) - Obsolete Product(s) |
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