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ST10F167 데이터시트(PDF) 8 Page - STMicroelectronics |
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ST10F167 데이터시트(HTML) 8 Page - STMicroelectronics |
8 / 69 page 8/69 ST10F167 P3.0- P3.13, P3.15 65 – 70, 73 – 80, 81 65 66 67 68 69 70 73 74 75 76 77 78 79 80 81 I/O I/O I/O I O I O I I I I I/O I/O O I/O O O I/O O Port 3 is a 15-bit (P3.14 is missing) 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 spe- cial). The following Port 3 pins also serve for alternate functions: P3.0 T0IN CAPCOM Timer T0 Count Input P3.1 T6OUT GPT2 Timer T6 Toggle Latch Output P3.2 CAPIN GPT2 Register CAPREL Capture Input P3.3 T3OUT GPT1 Timer T3 Toggle Latch Output P3.4 T3EUD GPT1 Timer T3 Ext.Up/Down Ctrl.Input P3.5 T4IN GPT1 Timer T4 Input for Count/Gate/Reload/Capture P3.6 T3IN GPT1 Timer T3 Count/Gate Input P3.7 T2IN GPT1 Timer T2 Input for Count/Gate/Reload/Capture P3.8 MRST SSC Master-Rec./Slave-Transmit I/O P3.9 MTSR SSC Master-Transmit/Slave-Rec. O/I P3.10 T ×D0 ASC0 Clock/Data Output (Asyn./Syn.) P3.11 R ×D0 ASC0 Data Input (Asyn.) or I/O (Syn.) P3.12 BHE Ext. Memory High Byte Enable Signal, WRH Ext. Memory High Byte Write Strobe P3.13 SCLK SSC Master Clock Outp./Slave Cl. Inp. P3.15 CLKOUT System Clock Output (=CPU Clock) P4.0 –P4.7 85 - 92 85 90 91 92 I/O O O I O O O Port 4 is an 8-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. In case of an external bus configuration, Port 4 can be used to out- put the segment address lines: P4.0 A16 Least Significant Segment Addr. Line P4.5 A21 Segment Address Line, CAN_RxD CAN Receive Data Input P4.6 A22 Segment Address Line, CAN_TxD CAN Transmit Data Output P4.7 A23 Most Significant Segment Addr. Line RD 95 O External Memory Read Strobe. RD is activated for every external instruction or data read access. Table 2.1 Pin Definitions and Functions (cont’d) Symbol Pin Number Input (I) Output (O) Function 3 |
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