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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PIC16F-E/SS датащи(PDF) 115 Page - Microchip Technology |
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PIC16F-E/SS датащи(HTML) 115 Page - Microchip Technology |
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115 / 178 page  © 2007 Microchip Technology Inc. DS40044F-page 113 PIC16F627A/628A/648A 14.13 In-Circuit Debugger Since in-circuit debugging requires the loss of clock, data and MCLR pins, MPLAB® ICD 2 development with an 18-pin device is not practical. A special 28-pin PIC16F648A-ICD device is used with MPLAB ICD 2 to provide separate clock, data and MCLR pins and frees all normally available pins to the user. Debugging of all three versions of the PIC16F627A/628A/648A is supported by the PIC16F648A-ICD. This special ICD device is mounted on the top of a header and its signals are routed to the MPLAB ICD 2 connector. On the bottom of the header is an 18-pin socket that plugs into the user’s target via an 18-pin stand-off connector. When the ICD pin on the PIC16F648A-ICD device is held low, the In-Circuit Debugger functionality is enabled. This function allows simple debugging functions when used with MPLAB ICD 2. When the microcontroller has this feature enabled, some of the resources are not available for general use. Table 14-19 shows which features are consumed by the background debugger. TABLE 14-19: DEBUGGER RESOURCES The PIC16F648A-ICD device with header is supplied as an assembly. See Microchip Part Number AC162053. I/O pins ICDCLK, ICDDATA Stack 1 level Program Memory Address 0h must be NOP 300h-3FEh |
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