CC2430 Datasheet, PDF (28/234 Pages) Texas Instruments – A True System-on-Chip solution for 2.4 GHz IEEE 802.15.4 / ZigBee-TM

CC2430
10 Power Management
The CC2430 has four major power modes,
called PM0, PM1, PM2 and PM3. PM0 is the
active mode while PM3 has the lowest power
consumption. The power modes are shown in
Table 23 together with voltage regulator and
oscillator options.
Power High speed
Mode oscillator
Low-speed
oscillator
PM0
PM1
PM2
PM3
A None
B 32 MHz
XOSC
C HS
RCOSC
D Both
B, C, D
A
A
A
A None
B 32.768
kHz
RCOSC
C 32.768
kHz
XOSC
B, C
B, C
B, C
A
Table 23: Power Modes
Voltage
regulator
(digital)
A Off
B On
B
B
A
A
PM0 : The full functional mode. The voltage
regulator to the digital core is on and either the
HS-RCOSC or the 32 MHz XOSC or both are
running. Either the 32.768 kHz RCOSC or the
32.768 kHz XOSC is running.
PM1 : The voltage regulator to the digital part
is on. Neither the 32 MHz XOSC nor the HS-
RCOSC are running. Either the 32.768 kHz
RCOSC or the 32.768 kHz XOSC is running.
The system will go to PM0 on reset or an
external interrupt or when the sleep timer
expires.
PM2 : The voltage regulator to the digital core
is turned off. Neither the 32 MHz XOSC nor
the HS-RCOSC are running. Either the 32.768
kHz RCOSC or the 32.768 kHz XOSC is
running. The system will go to PM0 on reset or
an external interrupt or when the sleep timer
expires.
PM3 : The voltage regulator to the digital core
is turned off. None of the oscillators are
running. The system will go to PM0 on reset or
an external interrupt.
Refer to section 13.10 on page 140 for a
detailed description of power management.
CC2430 PRELIMINARY Data Sheet (rev. 1.03) SWRS036A
Page 28 of 232