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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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56F8335 датащи(PDF) 32 Page - Freescale Semiconductor, Inc |
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56F8335 датащи(HTML) 32 Page - Freescale Semiconductor, Inc |
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32 / 160 page  56F8335 Technical Data, Rev. 5 32 Freescale Semiconductor Preliminary EXTBOOT Internal Ground Schmitt Input Input, pull-up enabled External Boot — This input is tied to VDD to force the device to boot from off-chip memory (assuming that the on-chip Flash memory is not in a secure state). Otherwise, it is tied to ground. For details, see Table 4-4. Note: When this pin is tied low, the customer boot software should disable the internal pull-up resistor by setting the XBOOT bit of the SIM_PUDR; see Part 6.5.6. Note: This pin is internally tied low (to VSS). EMI_MODE Internal Ground Schmitt Input Input, pull-up enabled External Memory Mode — This device will boot from internal Flash memory under normal operation. This function is also affected by EXTBOOT and the Flash security mode; see Table 4-4 for details. Note: When this pin is tied low, the customer boot software should disable the internal pull-up resistor by setting the EMI_MODE bit of the SIM_PUDR; see Part 6.5.6. Note: This pin is internally tied low (to VSS). Table 2-2 Signal and Package Information for the 128-Pin LQFP (Continued) Signal Name Pin No. Type State During Reset Signal Description |
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