Texas Instruments C2000 Workshop Guide And Lab Manual

Low Power Modes
C2000 Microcontroller Workshop - System Initialization 5 - 17
Low Power Modes
Low Power Modes
Low Power
Mode
CPU Logic
Clock
Peripheral
Logic Clock
Watchdog
Clock
PLL /
OSC
Normal Run
IDLE
STANDBY
HALT
on
off
off
off
on
on
off
off
on
on
on
off
on
on
on
off
See device datasheet for power consumption in each mode
Low Power Mode Control Register 0
SysCtrlRegs.LPMCR0 (lab file: SysCtrl.c)
1 - 07 - 214 - 8
LPM0WDINTE QUALSTDBYreserved
Low Power Mode Selection
00 = Idle (default)
01 = Standby
1x = Halt
Wake from STANDBY
GPIO signal qualification *
000000 = 2 OSCCLKs
000001 = 3 OSCCLKs
111111 = 65 OSCCLKS (default)
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15
Watchdog Interrupt
wake device from
STANDBY
0 = disable (default)
1 = enable
Low Power Mode Entering
1. Set LPM bits
2. Enable desired exit interrupt(s)
3. Execute IDLE instruction
4. The power down sequence of the hardware
depends on LP mode
* QUALSTDBY will qualify the GPIO wakeup signal in series with the GPIO port qualification.
This is useful when GPIO port qualification is not available or insufficient for wake-up purposes.

Texas Instruments C2000 Specifications

General

Brand	Texas Instruments
Model	C2000
Category	Microcontrollers
Language	English