Datasheet

Power Management
Intel
®
Quark™ microcontroller D2000
Datasheet January 2016
62 Document Number: 333577-002EN
8.1 Component Power States
8.1.1 Voltage Regulator
Table 13. VR Power States
Power
State
Definition Max
Current
Entry
Latency
Exit
Latency
How Triggered
NRML-1.8V Normal mode. Voltage
regulator (Retention
Alternating Regulator)
functions in switching
regulator (eSR) mode and
able to output 50 mA current.
eSR output regulates. iLR-RET
output set to high impedance.
EN=H, VREGSEL=L. Change
in power state incurs tSTRB of
1 usec + tROK_PROG (TBD).
90%
efficiency
2 us 20 us writing into
AON_VR.VREG_SEL
RET-1.8V Retention mode. Voltage
regulator (Retention
Alternating Regulator)
functions in linear regulator
(iLR) mode and able to output
300 uA current. iLR-RET
output regulates. eSR output
set to high impedance. EN=H,
VREGSEL=H. Change in
power state incurs tSTRB of 1
usec + tROK_PROG (TBD) of
latency.
1% of
current
load
20 us 2 us writing into
AON_VR.VREG_SEL
RET-1.35V Retention mode. Voltage
regulator (Retention
Alternating Regulator)
functions in linear regulator
(iLR) mode and able to output
300 uA current. iLR-RET
output regulates. eSR output
set to high impedance. EN=H,
VREGSEL=H.
1% of
current
load
3 us 4 us writing into
AON_VR.VSEL and
AON_VR.VSTRB
OFF HiZ mode. Voltage regulator
is disabled. iLR-RET output is
set to high impedance. eSR
output is set to high
impedance. VREF_OUT is is
set to its nominal value.
EN=L, VREGSEL=x.
- - - Platform pulling
down VR_EN input
pin (use external
voltage regulator)
Note: Silicon OSC minimum current is ~200uA when configured for 4MHz operation (lowest
power mode) – configuring the Voltage Regulator into Low Power is only be supported when
clocking off either 32.768 kHz OSC or 4 MHz Silicon oscillator mode with prescaler set for 125
kHz or lower output.