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C161PI Scheda tecnica(PDF) 9 Page - Infineon Technologies AG |
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C161PI Scheda tecnica(HTML) 9 Page - Infineon Technologies AG |
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9 / 82 page ![]() &3, Data Sheet 7 1999-07 P3 P3.0 P3.1 P3.2 P3.3 P3.4 P3.5 P3.6 P3.7 P3.8 P3.9 P3.10 P3.11 P3.12 P3.13 P3.15 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 IO I/O I/O I O I I I I I/O I/O O I/O O O I/O O O Port 3 is a 15-bit bidirectional I/O port. It is bit-wise programmable for input or output via direction bits. For a pin configured as input, the output driver is put into high-impedance state. Port 3 outputs can be configured as push/pull or open drain drivers. The input threshold of Port 3 is selectable (TTL or special). The following Port 3 pins also serve for alternate functions: SCL0 I2C Bus Clock Line 0 SDA0 I2C Bus Data Line 0 CAPIN GPT2 Register CAPREL Capture Input T3OUT GPT1 Timer T3 Toggle Latch Output T3EUD GPT1 Timer T3 External Up/Down Ctrl.Inp T4IN GPT1 Timer T4 Count/Gate/Reload/ Capture Input T3IN GPT1 Timer T3 Count/Gate Input T2IN GPT1 Timer T2 Count/Gate/Reload/ Capture Input MRST SSC Master-Rec. / Slave-Trans. Inp/Outp. MTSR SSC Master-Trans. / Slave-Rec. Outp/Inp. T ×D0 ASC0 Clock/Data Output (Async./Sync.) R ×D0 ASC0 Data Input (Async.) or I/O (Sync.) BHE External Memory High Byte Enable Signal, WRH External Memory High Byte Write Strobe SCLK SSC Master Clock Outp. / Slave Clock Inp. CLKOUT System Clock Output (=CPU Clock) FOUT Programmable Frequency Output Note: Pins P3.0 and P3.1 are open drain outputs only. Table 1 Pin Definitions and Functions (continued) Symbol Pin Num. TQFP Pin Num. MQFP Input Outp. Function |
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