Readout TMS320F28075 DSP Microcontroller Embedded Firmware from locked flash memory of mcu tms320f28075 after unlock the protection set by its security fuse bit, and duplicate readout program to new processor tms320f28075 flash memory;
See Table 3-1 for details. Inputs are not 5-V tolerant. All GPIO pins are I/O/Z and have an internal pullup (PU), which can be selectively enabled or disabled on a per-pin basis. This feature only applies to the GPIO pins. The pullups on the PWM pins are not enabled at reset. The pullups on other GPIO pins are enabled upon reset after readout dsp microcontroller tms320f28034 flash data. The AIO pins do not have an internal pullup.
When the on-chip voltage regulator (VREG) is used, the GPIO19, GPIO26–27, and GPIO34–38 pins could glitch during power up. This potential glitch will finish before the boot mode pins are read and will not affect boot behavior, if glitching is unacceptable in an application, 1.8 V could be supplied externally.
Alternatively, adding a current-limiting resistor (for example, 470 Ω) in series with these pins and any external driver could be considered to limit the potential for degradation to the pin and/or external circuitry in the process of extract microcontroller tms320f28051 flash heximal. There is no power- sequencing requirement when using an external 1.8-V supply.
However, if the 3.3-V transistors in the level-shifting output buffers of the I/O pins are powered before the 1.8-V transistors, it is possible for the output buffers to turn on, causing a glitch to occur on the pin during power up. To avoid this behavior, power the VDD pins before or simultaneously with the VDDIO pins, ensuring that the VDD pins have reached 0.7 V before the VDDIO pins reach 0.7V.
