STEVAL-ISQ002V1 STMicroelectronics, STEVAL-ISQ002V1 Datasheet - Page 57
![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: 57 of 172
- Download datasheet (2Mb)
16-BIT TIMER (Cont’d)
16-bit read sequence: (from either the Counter
Register or the Alternate Counter Register).
The user must read the MS Byte first, then the LS
Byte value is buffered automatically.
This buffered value remains unchanged until the
16-bit read sequence is completed, even if the
user reads the MS Byte several times.
After a complete reading sequence, if only the
CLR register or ACLR register are read, they re-
turn the LS Byte of the count value at the time of
the read.
Whatever the timer mode used (input capture, out-
put compare, one pulse mode or PWM mode) an
overflow occurs when the counter rolls over from
FFFFh to 0000h then:
– The TOF bit of the SR register is set.
– A timer interrupt is generated if:
If one of these conditions is false, the interrupt re-
mains pending to be issued as soon as they are
both true.
At t0
At t0 +∆t
Beginning of the sequence
Sequence completed
– TOIE bit of the CR1 register is set and
– I bit of the CC register is cleared.
Read
MS Byte
Read
LS Byte
instructions
Other
Returns the buffered
LS Byte value at t0
is buffered
LS Byte
Clearing the overflow interrupt request is done in
two steps:
1. Reading the SR register while the TOF bit is set.
2. An access (read or write) to the CLR register.
Notes: The TOF bit is not cleared by accesses to
ACLR register. The advantage of accessing the
ACLR register rather than the CLR register is that
it allows simultaneous use of the overflow function
and reading the free running counter at random
times (for example, to measure elapsed time) with-
out the risk of clearing the TOF bit erroneously.
The timer is not affected by WAIT mode.
In HALT mode, the counter stops counting until the
mode is exited. Counting then resumes from the
previous count (Device awakened by an interrupt)
or from the reset count (Device awakened by a
Reset).
11.3.3.2 External Clock
The external clock (where available) is selected if
CC0=1 and CC1=1 in CR2 register.
The status of the EXEDG bit in the CR2 register
determines the type of level transition on the exter-
nal clock pin EXTCLK that will trigger the free run-
ning counter.
The counter is synchronised with the falling edge
of the internal CPU clock.
A minimum of four falling edges of the CPU clock
must occur between two consecutive active edges
of the external clock; thus the external clock fre-
quency must be less than a quarter of the CPU
clock frequency.
ST72260Gx, ST72262Gx, ST72264Gx
57/172
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: