Part Number: DRA821U
Other Parts Discussed in Thread: DRA821
Hi team,
I found a typo in DRA821's TRM.
In page 1430, "5.2.2.2.1.5.3 Concurrent Power Domain/Module State Transitions".
Original
1. Wait for WKUP_PSC0_PTSTAT[x] GOSTAT or PSC0_PTSTAT[x] GOSTAT to clear to 0. Wait for any
previously initiated transitions to finish before initiating a new transition.
2. Set WKUP_PSC0_PDCTL_y[0] NEXT or PSC0_PDCTL_y[0] NEXT for an ON (1) transition.
3. Set WKUP_PSC0_MDCTL_y[4-0] NEXT or PSC0_MDCTL_y[4-0] NEXT to Enable (0x3). Note that
transitions in multiple WKUP_PSC0_MDCTL_y[4-0] NEXT or PSC0_MDCTL_y[4-0] NEXT fields may be set
in this step as long as the corresponding power domain is on.
4. Set WKUP_PSC0_PTSTAT[x] GOSTAT or PSC0_PTSTAT[x] GOSTAT to 1 to initiate the state transition(s).
The PSC will turn on the logic/memory for that particular domain, starts the module clock, then de-asserts the
module reset.
5. Wait for WKUP_PSC0_PTSTAT[x] GOSTAT or PSC0_PTSTAT[x] GOSTAT to self-clear to 0. The module is
safely in the new state only after WKUP_PSC0_PTSTAT[x] GOSTAT or PSC0_PTSTAT[x] GOSTAT clears to
0.
Expected
1. Wait for WKUP_PSC0_PTSTAT[x] GOSTAT or PSC0_PTSTAT[x] GOSTAT to clear to 0. Wait for any
previously initiated transitions to finish before initiating a new transition.
2. Set WKUP_PSC0_PDCTL_y[0] NEXT or PSC0_PDCTL_y[0] NEXT for an ON (1) transition.
3. Set WKUP_PSC0_MDCTL_y[4-0] NEXT or PSC0_MDCTL_y[4-0] NEXT to Enable (0x3). Note that
transitions in multiple WKUP_PSC0_MDCTL_y[4-0] NEXT or PSC0_MDCTL_y[4-0] NEXT fields may be set
in this step as long as the corresponding power domain is on.
4. Set WKUP_PSC0_PTCMD[x] GOSTAT or PSC0_PTCMD[x] GOSTAT to 1 to initiate the state transition(s).
The PSC will turn on the logic/memory for that particular domain, starts the module clock, then de-asserts the
module reset.
5. Wait for WKUP_PSC0_PTSTAT[x] GOSTAT or PSC0_PTSTAT[x] GOSTAT to self-clear to 0. The module is
safely in the new state only after WKUP_PSC0_PTSTAT[x] GOSTAT or PSC0_PTSTAT[x] GOSTAT clears to
0.
Could you confirm this?
Thanks and Best Regards,
Junpei Kishi
