Texas Instruments CC2650DK 사용자 설명서
Introduction
Table 6-5. Power Modes as Defined in TI-RTOS
Mode
Software Configurable Power Modes
Reset Pin Held
Active
Idle
Standby
Shutdown
System CPU
Active
Off
Off
Off
Off
System SRAM
On
On
Retained
Off
Off
Register retention
(1)
Full
Full
Partial
No
No
VIMS_PD (flash)
On
Available
Off
Off
Off
RFCORE_PD (radio)
Available
Available
Off
Off
Off
SERIAL_PD
Available
Available
Off
Off
Off
PERIPH_PD
Available
Available
Off
Off
Off
Sensor controller
Available
Available
Available
Off
Off
Supply system
On
On
Duty-cycled
Off
Off
Current
Application
Application
≈1 µA
≈0.1 µA
≈0.1 µA
dependent
dependent
Time from CPU
–
TBD
TBD
TBD
–
active to ready for
Wakeup
Wakeup
(2)
Wakeup time to CPU
–
25 µs
300 µs
(3)
≈1.5 ms
≈1.5 ms
active
(2)
High-speed clock
XOSC_HF or
XOSC_HF or
Off
Off
Off
RCOSC_HF
RCOSC_HF
Low-speed clock
XOSC_LF or
XOSC_LF or
XOSC_LF or
Off
Off
RCOSC_LF
RCOSC_LF
RCOSC_LF
Wakeup on RTC
Available
Available
Available
Off
Off
Wakeup on pin edge
Available
Available
Available
Available
Off
Wakeup on reset pin
Available
Available
Available
Available
Available
(1)
See
for modules with retention.
(2)
Numbers include TI-RTOS overhead
(3)
Note that when an emulator/debugger is attached to the device the wakeup time is approximately 200 us shorter as the system will not
enter true standby.
enter true standby.
6.1.5.1
Startup State
The CC26xx state after a system reset, power on, or wakeup from shutdown is as follows:
•
Global LDO active
•
Digital LDO active
•
AON_VD powered
–
AUX_PD powered
–
JTAG_PD powered off
•
MCU_VD powered
–
MCU_AON powered
–
CPU_PD powered
•
System CPU in run mode
–
BUS_PD powered
•
SYSBUS clock running
–
VIMS_PD powered
•
VIMS clock running
–
All other power domains off
–
All digital module clocks disabled
423
SWCU117A – February 2015 – Revised March 2015
Power, Reset, and Clock Management
Copyright © 2015, Texas Instruments Incorporated