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MSP430FR6889 Datasheet, PDF (72/176 Pages) Texas Instruments – Mixed-Signal Microcontrollers
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MSP430FR6889, MSP430FR68891, MSP430FR6888, MSP430FR6887
MSP430FR5889, MSP430FR58891, MSP430FR5888, MSP430FR5887
SLASE32A – AUGUST 2014 – REVISED MARCH 2015
www.ti.com
6.3 Operating Modes
The MSP430 devices have one active mode and seven software selectable low-power modes of
operation. An interrupt event can wake up the device from low-power modes LPM0 through LPM4, service
the request, and restore back to the low-power mode on return from the interrupt program. Low-power
modes LPM3.5 and LPM4.5 disable the core supply to minimize power consumption.
Table 6-1. Operating Modes
MODE
AM
LPM0
LPM1
LPM2
LPM3
LPM4
LPM3.5
LPM4.5
ACTIVE
ACTIVE
,
FRAM
OFF (1)
CPU OFF
(2)
CPU OFF
STANDBY STANDBY
OFF
RTC
ONLY
SHUTDO
WN
WITH
SVS
SHUTDO
WN
WITHOU
T SVS
Maximum System
Clock
16 MHz
16 MHz 16 MHz
50 kHz
50 kHz
0 (3)
50 kHz
0 (3)
Typical Current
Consumption,
TA = 25°C
Typical Wakeup
Time
103
65
75 µA at
µA/MHz µA/MHz 1MHz
N/A
instant.
40 µA at
1MHz
6 µs
0.9 µA
6 µs
0.4 µA
7 µs
0.3 µA
0.35 µA 0.2 µA 0.02 µA
7 µs
250 µs 250 µs 1000 µs
Wakeup Events
N/A
all
all
LF
I/O
Comp
LF
I/O
Comp
_
I/O
Comp
RTC
I/O
_
I/O
CPU
on
off
off
off
off
off
reset
reset
FRAM
on
off (1)
standby (or
off (1))
off
off
off
off
off
off
High-Frequency
Peripherals
available
available available
off
off
off
reset
reset
Low-Frequency
Peripherals
available
available
available
available
available
(4)
off
RTC
reset
Unclocked
Peripherals (5)
available
available
available
available
available
(4)
available
(4)
reset
reset
MCLK
SMCLK
on
off
off
off
off
off
off
off
opt. (6)
opt. (6)
opt. (6)
off
off
off
off
off
ACLK
Full Retention
SVS
on
yes
always
on
yes
always
on
yes
always
on
yes
opt. (8)
on
yes (7)
opt. (8)
off
yes (7)
opt. (8)
off
no
opt. (8)
off
no
on (9)
off (10)
Brownout
always
always always always always always always
always
(1) FRAM disabled in FRAM controller
(2) Disabling the FRAM via the FRAM controller decreases the LPM current consumption, but the wake-up time can increase. If the wake-
up is for FRAM access (for example, to fetch an interrupt vector), wake-up time is increased. If the wake-up is for a non-FRAM operation
(for example, DMA transfer to RAM), wake-up time is not increased.
(3) All clocks disabled
(4) See Section 6.3.1, which describes the use of peripherals in LPM3 and LPM4.
(5) "Unclocked peripherals" are peripherals that do not require a clock source to operate; for example, the comparator and REF, or the
eUSCI when operated as an SPI slave.
(6) Controlled by SMCLKOFF
(7) Using the RAM Controller, the RAM can be completely powered down to save leakage; however, all data is lost.
(8) Activated SVS (SVSHE = 1) results in higher current consumption. SVS not included in typical current consumption.
(9) SVSHE = 1
(10) SVSHE = 0
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Detailed Description
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