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6.2.2.2 RESETCTL Register (Offset = 4h) [reset = X]
RESETCTL is shown in Figure 6-65 and described in Table 6-68.
Reset Management This register contains bitfields releated to system reset such as reset source and
reset request and control of brown out resets.
Figure 6-65. RESETCTL Register
31 30 29 28 27 26 25 24
SYSRESET RESERVED BOOT_DET_1_ BOOT_DET_0_
CLR CLR
W-X R-X R/W-X R/W-X
23 22 21 20 19 18 17 16
RESERVED BOOT_DET_1_ BOOT_DET_0_
SET SET
R-X R/W-X R/W-X
15 14 13 12 11 10 9 8
WU_FROM_SD GPIO_WU_FR BOOT_DET_1 BOOT_DET_0 VDDS_LOSS_ VDDR_LOSS_ VDD_LOSS_E RESERVED
OM_SD EN_OVR EN_OVR N_OVR
R-X R-X R-X R-X R/W-X R/W-X R/W-X R-X
7 6 5 4 3 2 1 0
VDDS_LOSS_ VDDR_LOSS_ VDD_LOSS_E CLK_LOSS_EN RESET_SRC RESERVED
EN EN N
R/W-1h R/W-1h R/W-1h R/W-X R-X R-X
Table 6-68. RESETCTL Register Field Descriptions
Bit Field Type Reset Description
31 SYSRESET W X
Cold reset register. Writing 1 to this bitfield will reset the entire chip
and cause boot code to run again. 0: No effect 1: Generate system
reset. Appears as SYSRESET in RESET_SRC.
30-26 RESERVED R X
Software should not rely on the value of a reserved. Writing any
other value than the reset value may result in undefined behavior.
25 BOOT_DET_1_CLR R/W X
Internal. Only to be used through TI provided API.
24 BOOT_DET_0_CLR R/W X
Internal. Only to be used through TI provided API.
23-18 RESERVED R X
Software should not rely on the value of a reserved. Writing any
other value than the reset value may result in undefined behavior.
17 BOOT_DET_1_SET R/W X
Internal. Only to be used through TI provided API.
16 BOOT_DET_0_SET R/W X
Internal. Only to be used through TI provided API.
15 WU_FROM_SD R X
A Wakeup from SHUTDOWN on an IO event has occurred, or a
wakeup from SHUTDOWN has occurred as a result of the debugger
being attached.. (TCK pin being forced low) Please refer to
[IOC:IOCFGn,.WU_CFG] for configuring the IO's as wakeup
sources. 0: Wakeup occurred from cold reset or brown out as seen
in RESET_SRC 1: A wakeup has occurred from SHUTDOWN Note:
This flag can not be cleared and will therefor remain valid untill
poweroff/reset
14 GPIO_WU_FROM_SD R X
A wakeup from SHUTDOWN on an IO event has occurred Please
refer to [IOC:IOCFGn,.WU_CFG] for configuring the IO's as wakeup
sources. 0: The wakeup did not occur from SHUTDOWN on an IO
event 1: A wakeup from SHUTDOWN occurred from an IO event
The case where WU_FROM_SD is asserted but this bitfield is not
asserted will only occur in a debug session. The boot code will not
proceed with wakeup from SHUTDOWN procedure until this bitfield
is asserted as well. Note: This flag can not be cleared and will
therefor remain valid untill poweroff/reset
13 BOOT_DET_1 R X
Internal. Only to be used through TI provided API.
12 BOOT_DET_0 R X
Internal. Only to be used through TI provided API.
490
Power, Reset, and Clock Management SWCU117A–February 2015–Revised March 2015
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