Figure 3-35 shows the power-on reset sequence of the EVE2 subsystem.
The power-on reset to EVE2 is applied when PD_EVE2 is powered. The assumptions on power-on reset assertion are:
- The PRCM module provides the EVE2_GFCLK functional clock to the EVE subsystem, and it has been enabled by MPU software control.
The power-on reset sequence is:
- Software clears the RM_EVE2_RSTCTRL[1] RST_EVE2 bit.This causes the PRCM module to release the EVE2_PWRON_RST used inside EVE2 to reset mainly the emulation logic and EVE2_RST used to reset all logic inside EVE2. Then software can download data into TCM memory while keeping the CPU under reset.
- When the TCM memory is initialized, software clears the RM_EVE2_RSTCTRL[0] RST_EVE2_LRST bit. This releases EVE2_LRST to the local CPU inside EVE subsystem.