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ST10F280 数据表(PDF) 92 Page - STMicroelectronics |
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ST10F280 数据表(HTML) 92 Page - STMicroelectronics |
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92 / 186 page  ST10F280 92/186 12.7 - Port 5 This 16-bit input port can only read data. There is no output latch and no direction register. Data written to P5 will be lost. P5 (FFA2h / D1h) SFR Reset Value: XXXXh Alternate Functions of Port 5 Each line of Port 5 is also connected to one of the multiplexer of the Analog/Digital Converter. All port lines (P5.15...P5.0) can accept analog signals (AN15...AN0) that can be converted by the ADC. No special pro- gramming is required for pins that shall be used as analog inputs. Some pins of Port 5 also serve as exter- nal timer control lines for GPT1 and GPT2. The table below summarizes the alternate functions of Port 5. 15 14 13 12 11 10 9876543210 P5.15 P5.14 P5.13 P5.12 P5.11 P5.10 P5.9 P5.8 P5.7 P5.6 P5.5 P5.4 P5.3 P5.2 P5.1 P5.0 RRRRRRRRRRRRRRRR Bit Function P5.y Port data register P5 bit y (Read only) Table 17 : Port 5 Alternate Functions Port 5 Pin Alternate Function a) Alternate Function b) P5.0 P5.1 P5.2 P5.3 P5.4 P5.5 P5.6 P5.7 P5.8 P5.9 P5.10 P5.11 P5.12 P5.13 P5.14 P5.15 Analog Input AN0 Analog Input AN1 Analog Input AN2 Analog Input AN3 Analog Input AN4 Analog Input AN5 Analog Input AN6 Analog Input AN7 Analog Input AN8 Analog Input AN9 Analog Input AN10 Analog Input AN11 Analog Input AN12 Analog Input AN13 Analog Input AN14 Analog Input AN15 - - - - - - - - - - T6EUD Timer 6 ext. Up/Down Input T5EUD Timer 5 ext. Up/Down Input T6IN Timer 6 Count Input T5IN Timer 5 Count Input T4EUD Timer 4 ext. Up/Down Input T2EUD Timer 2 ext. Up/Down Input Figure 42 : Port 5 I/O and Alternate Functions Port 5 Alternate Function a) General Purpose Inputs b) A/D Converter Inputs Timer Inputs P5.7 P5.6 P5.5 P5.4 P5.3 P5.2 P5.1 P5.0 P5.15 P5.14 P5.13 P5.12 P5.11 P5.10 P5.9 P5.8 AN7 AN6 AN5 AN4 AN3 AN2 AN1 AN0 AN15 AN14 AN13 AN12 AN11 AN10 AN9 AN8 T2EUD T4EUD T5IN T6IN T5EUD T6EUD |
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