Datasheet
Power Management
Intel
®
Quark™ microcontroller D2000
Datasheet January 2016
70 Document Number: 333577-002EN
8.2.3 Power and Latency Requirements
The System power states are maintained and managed in FW.
Table 22. Power and Latency Requirements
SoC
Power
State
Max
Current
Latency Component Power State
TYP
25C
TYP
105
C
Entry Exit CPU VR ADC CM
P
SRAM 32
MH
z
32.76
8 kHz
Bus
Cloc
k
IO
Stat
e
RUN
<10
mA
- <5
usec
<2
usec
C0 NRML Any Any NRML
/
STBY
ON ON ON ON
LOW
POWER
COMPUT
E
<1.
2
mA
- 2
usec
<1
usec
C0
(<
4MHz
)
NRML
/
RET
Any Any NRML
/
STBY
ON/
OFF
ON < 4
MHz
ON
HALT
<4
mA
TBC
- 6
cycle
s
3
cycle
s
C2 NRML
/
RET
Any Any STBY ON/
OFF
ON ON ON
DEEP
SLEEP
RTC
<5
uA
TBC
- <1
usec
<5
usec
C2 RET PD/DP
D
Any STBY OFF ON OFF ON
DEEP
SLEEP
NORTC
<5
uA
TBC
- <1
usec
<5
usec
C2 RET PD/DP
D
Any STBY OFF OFF OFF ON
1. LOW POWER COMPUTE has to work with Hybrid Oscillator set to Silicon oscillator mode with
4MHz output to limit 32MHz OSC at 180 uA.
2. "Any" state of comparator CMPH is dependent on current consumed versus number of
external wakes to be enabled. Only needed number of comparators are in ON state. 6 High
performance high power comparators are in OFF state.
3. It takes ~350 msec (typ) to power up the RTC XTAL oscillator. Power saving in switching off
RTC XTAL oscillator is ~150 nA.
4. Low power wait or DEEP SLEEP RTC or DEEP SLEEP NORTC corresponds to VR in retention
state (capable of sourcing only 300 uA max) and differ only in terms of which wake sources
are enabled and can be decided by FW based on platform/system power usecases. If GPIO
based wake is required, the retention voltage of VR has to 1.8V typical for digital IO pads to
operate.
5. Exiting DEEP SLEEP NORTC state can be with Silicon oscillator set at 4 MHz
(CCU_SYS_CLK_SEL set to Hybrid oscillator at entry) so that exit latency is < 2 usec. RTC
oscillator will lock after 350 msec (typ).
6. In DEEP SLEEP NORTC, exit is possible only with comparator based wake. GPIO Wake, AON
timer wake, RTC alarm wake are not available.
7. All entry/exit latencies are given assuming hybrid oscillator in Silicon mode and 4 MHz. Low
power state Current numbers are given assuming 1 low power comparator enabled for wake.