STEVAL-ISQ002V1 STMicroelectronics, STEVAL-ISQ002V1 Datasheet - Page 33
![BOARD EVAL BASED ON ST72264G1](/photos/9/9/90917/steval-isq002v1_sml.jpg)
STEVAL-ISQ002V1
Manufacturer Part Number
STEVAL-ISQ002V1
Description
BOARD EVAL BASED ON ST72264G1
Manufacturer
STMicroelectronics
Specifications of STEVAL-ISQ002V1
Main Purpose
Interface, PMBus
Embedded
Yes, MCU, 8-Bit
Utilized Ic / Part
ST72F264
Primary Attributes
The PMBus™ Interface Using the ST7 I2C Peripheral
Secondary Attributes
Firmware in C Language
Product
Power Management Modules
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-6423
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
STEVAL-ISQ002V1
Manufacturer:
STMicroelectronics
Quantity:
1
- Current page: 33 of 172
- Download datasheet (2Mb)
8 POWER SAVING MODES
8.1 INTRODUCTION
To give a large measure of flexibility to the applica-
tion in terms of power consumption, three main
power saving modes are implemented in the ST7
(see
After a RESET the normal operating mode is se-
lected by default (RUN mode). This mode drives
the device (CPU and embedded peripherals) by
means of a master clock which is based on the
main oscillator frequency divided by 2 (f
From Run mode, the different power saving
modes may be selected by setting the relevant
register bits or by calling the specific ST7 software
instruction whose action depends on the oscillator
status.
Figure 20. Power Saving Mode Transitions
Figure
20).
SLOW WAIT
POWER CONSUMPTION
SLOW
HALT
WAIT
RUN
Low
High
CPU
).
8.2 SLOW MODE
This mode has two targets:
– To reduce power consumption by decreasing the
– To adapt the internal clock frequency (f
SLOW mode is controlled by three bits in the
MISR1 register: the SMS bit which enables or dis-
ables Slow mode and two CPx bits which select
the internal slow frequency (f
In this mode, the oscillator frequency can be divid-
ed by 4, 8, 16 or 32 instead of 2 in normal operat-
ing mode. The CPU and peripherals are clocked at
this lower frequency.
Note: SLOW-WAIT mode is activated when enter-
ring the WAIT mode while the device is already in
SLOW mode.
Figure 21. SLOW Mode Clock Transitions
internal clock in the device,
the available supply voltage.
ST72260Gx, ST72262Gx, ST72264Gx
CP1:0
SMS
f
CPU
f
OSC2
f
FREQUENCY
OSC2
00
NEW SLOW
REQUEST
/2
01
CPU
f
OSC2
NORMAL RUN MODE
).
/4
REQUEST
CPU
f
OSC2
33/172
) to
Related parts for STEVAL-ISQ002V1
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![STEVAL-ILL011V1](/photos/9/30/93079/steval-ill011v1_tmb.jpg)
Part Number:
Description:
BOARD RGB CTR ST7,STP08C596MTR
Manufacturer:
STMicroelectronics
Datasheet:
![STEVAL-PCC015V1](/images/manufacturer_photos/0/6/637/stmicroelectronics_tmb.jpg)
Part Number:
Description:
Power Management IC Development Tools Full Speed USB to RS232 Bridge Demo
Manufacturer:
STMicroelectronics
Datasheet:
![STEVAL-ISV015V1](/images/manufacturer_photos/0/6/637/stmicroelectronics_tmb.jpg)
Part Number:
Description:
Power Management IC Development Tools 2.5W solar eval BRD USB SPV1040 LD39050
Manufacturer:
STMicroelectronics
Datasheet:
![STEVAL-MKI062V2](/photos/28/39/283999/steval-mki062v2_tmb.jpg)
Part Number:
Description:
BOARD EVAL FOR MEMS SENSORS
Manufacturer:
STMicroelectronics
Datasheet:
![STEVAL-IFN001V2](/photos/9/6/90636/steval-ifn001v2_tmb.jpg)
Part Number:
Description:
KIT DEV STARTER ST10F276Z5
Manufacturer:
STMicroelectronics
Datasheet:
![STEVAL-CCH002V1](/photos/9/6/90626/steval-cch002v1_tmb.jpg)
Part Number:
Description:
BOARD EVAL HDMI $ VIDEO SWITCH
Manufacturer:
STMicroelectronics
Datasheet:
![STEVAL-MKI032V1](/photos/9/18/91861/steval-mki032v1_tmb.jpg)
Part Number:
Description:
BOARD DEMO ACCELEROMETER DIL24
Manufacturer:
STMicroelectronics
Datasheet:
![STEVAL-IFS003V1](/photos/9/18/91877/steval-ifs003v1_tmb.jpg)
Part Number:
Description:
BOARD STLM75/STDS75/ST72F651
Manufacturer:
STMicroelectronics
Datasheet:
![STEVAL-IFS001V1](/photos/39/39/393955/steval-ifs001v1_tmb.jpg)
Part Number:
Description:
EVAL BOARD 3AXIS MEMS ACCELLRMTR
Manufacturer:
STMicroelectronics
Datasheet:
![STEVAL-IFS006V1](/photos/9/19/91986/steval-ifs006v1_tmb.jpg)
Part Number:
Description:
BOARD EVAL 8BIT MICRO + TDE1708
Manufacturer:
STMicroelectronics
Datasheet:
![HCF4040BF](/images/manufacturer_photos/0/6/637/stmicroelectronics_tmb.jpg)
Part Number:
Description:
STMicroelectronics [RIPPLE-CARRY BINARY COUNTER/DIVIDERS]
Manufacturer:
STMicroelectronics
Datasheet:
![HCF4054BF](/images/manufacturer_photos/0/6/637/stmicroelectronics_tmb.jpg)
Part Number:
Description:
STMicroelectronics [LIQUID-CRYSTAL DISPLAY DRIVERS]
Manufacturer:
STMicroelectronics
Datasheet:
![STEVAL-MKI062V2](/photos/28/39/283999/steval-mki062v2_tmb.jpg)
Part Number:
Description:
BOARD EVAL FOR MEMS SENSORS
Manufacturer:
STMicroelectronics
Datasheet: