Reset Sequence

Follow the sequence below to reset the JH-7110 system.

Table 1. Reset Sequence
Sequence Description
1 Powering up the chip, resetting the pad to active, and then latching the boot selection signals. The reset sequence starts after pad is reset to high.
2 5us delay, release the always-on domain reset, and clocks generated in always-on domain. And release the reset source on dom_sys_top.
3 Power down the PLL with 2us time interval
4 After the PLL power-down has been finished, wait 200us for PLL locking.
5 64 cycles of oscillator clock delay, release the system Clock and Reset Generator (CRG)'s reset to prepare the clock for system
6 64 cycles of oscillator clock delay, and release the system bus reset
7 Release CPU core reset after 32 cycles of oscillator clock delay has been completed. And CPU will boot from the boot vector.