STEVAL-IPE010V1 STMicroelectronics, STEVAL-IPE010V1 Datasheet - Page 64

• Manufacturer Part Number: STEVAL-IPE010V1
• Description: KIT DEMO ENERGY METER STPMC1/S1
• Manufacturer: STMicroelectronics
• Type: Other Power Managementr

Specifications of STEVAL-IPE010V1

• Main Purpose: Power Management, Energy/Power Meter
• Embedded: No
• Utilized Ic / Part: STPMC1, STPMS1
• Maximum Operating Temperature: + 85 C
• Product: Power Management Development Tools
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Primary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: STPMC1, STPMS1
• Other names: 497-10754

Theory of operation
Table 33.
Figure 24. Timing for writing configuration and mode bits
64/77
DAAAAAAA
D0000000
D1101111
76543210
Bit pos.
SCS
SCS
SYN
SYN
SCLNLC
SCLNLC
SDATD
SDATD
Functional description of commands
Example 18: Setting a configuration bit
The same procedure should be applied for the mode signals, but in this case the 7-bits
address must be taken from the relative
The lsb of command is also called EXE bit because instead of a data bit value, the
corresponding serial clock pulse is used to generate the necessary latching signal. This way
the writing mechanism does not need the measurement clock in order to operate, which
makes the operation of SPI module of STPMC1 completely independent from the rest of
device logic except from the signal POR.
Commands for changing system signals should be sent during active signals SCS and SYN
as it is shown in
driver of STPMC1 and make the SDATD as an input pin. A string of commands can be send
within one period of active signals SCS and SYN or command can be followed by reading
the data record but, in this case, the SYN should be deactivated in order to enable SDATD
output driver and a SYN pulse should be applied before activation of SCS in order to latch
the data.
t
t
1
2
−>
−>
To set the configuration bit 47 (part of the R-phase current channel calibrator) to 0, we
must convert the decimal 47 to its 7-bit binary value: 0101111. The byte command is
then composed like this:
1 bit DATA value+7-bits address = 10101111 (0xAF)
CFG000=D, (shadow of first configurator, TSTD)
CFGa=D,
CFG111=D, (shadow of last configurator, CHK)
t
t
2
3
(> 30 ns): SPI out of idle state
(> 30 ns): SPI enabled for write operation
t
t
1
1
Figure 24
(shadow of any configurator, a = AAAAAA
t
t
2
2
t
t
3
3
t
t
4
4
. The SYN must be put low in order to disable SDATD output
t
t
5
5
Doc ID 15728 Rev 4
(X, D, A = {0, 1})
Table 32
Command
.
2
< 1110000
t
t
6
6
2
)
t
t
7
7
t
t
8
8
t
t
9
9
STPMC1