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전자부품 데이터시트 검색엔진 |
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Q67121-C1061 데이터시트(PDF) 7 Page - Siemens Semiconductor Group |
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Q67121-C1061 데이터시트(HTML) 7 Page - Siemens Semiconductor Group |
7 / 43 page ![]() Semiconductor Group 6 1996 Intermediate Version C161 RSTOUT 66 O Internal Reset Indication Output. This pin is set to a low level when the part is executing either a hardware-, a software- or a watchdog timer reset. RSTOUT remains low until the EINIT (end of initialization) instruction is executed. NMI 67 I Non-Maskable Interrupt Input. A high to low transition at this pin causes the CPU to vector to the NMI trap routine. When the PWRDN (power down) instruction is executed, the NMI pin must be low in order to force the C161 to go into power down mode. If NMI is high, when PWRDN is executed, the part will continue to run in normal mode. Power Down is only available on the C161K and the C161O. If not used, pin NMI should be pulled high externally. P6.0 – P6.3 68 - 71 I/O I/O Port 6 is a 4-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. The Port 6 pins also serve for alternate functions: 68 69 70 71 O O O O P6.0 CS0 Chip Select 0 Output (C161O, C161K) P6.1 CS1 Chip Select 1 Output (C161O, C161K) P6.2 CS2 Chip Select 2 Output (C161O) P6.3 CS3 Chip Select 3 Output (C161O) The C161V does not provide CS outputs. P2.9 – P2.15 72 - 78 72 ... 75 I/O I/O I ... I Port 2 is a 7-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. The following Port 2 pins also serve for alternate functions: P2.9 EX1IN Fast External Interrupt 1 Input ... ... ... P2.12 EX4IN Fast External Interrupt 4 Input 76 ... 78 I ... I P2.13 EX5IN Fast External Interrupt 5 Input ... ... ... P2.15 EX7IN Fast External Interrupt 7 Input These ext. interrupts are only available on the C161O. P5.14 – P5.15 79 80 I I Port 5 is a 2-bit input-only port with Schmitt-Trigger characteristics. 79 80 I I The pins of Port 5 also serve as timer inputs: P5.14 T4EUD GPT1 Timer T4 Ext.Up/Down Ctrl.Input P5.15 T2EUD GPT1 Timer T2 Ext.Up/Down Ctrl.Input These functions are only available on the C161K and the C161O. Pin Definitions and Functions (cont’d) Symbol Pin Number Input Output Function |
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