ST7FMC1K4T6 STMicroelectronics, ST7FMC1K4T6 Datasheet - Page 191
![MCU 8BIT 16K FLASH 32TQFP](/photos/27/13/271337/tqfp-32_sml.jpg)
ST7FMC1K4T6
Manufacturer Part Number
ST7FMC1K4T6
Description
MCU 8BIT 16K FLASH 32TQFP
Manufacturer
STMicroelectronics
Series
ST7r
Datasheet
1.ST7FMC2S4T6.pdf
(309 pages)
Specifications of ST7FMC1K4T6
Core Processor
ST7
Core Size
8-Bit
Speed
8MHz
Connectivity
LINSCI
Peripherals
LVD, Motor Control PWM, POR, PWM, WDT
Number Of I /o
17
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
3.8 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-LQFP
Processor Series
ST7FMC1x
Core
ST7
Data Bus Width
8 bit
Data Ram Size
768 B
Interface Type
SCI, SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
60
Number Of Timers
3
Operating Supply Voltage
4.5 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Development Tools By Supplier
ST7MC-KIT/BLDC, ST7MDT50-EMU3, STX-RLINK
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 16 Channel
For Use With
497-8402 - BOARD EVAL COMPLETE INVERTER497-8400 - KIT IGBT PWR MODULE CTRL ST7MC497-4734 - EVAL KIT 3KW POWER DRIVER BOARD497-4733 - EVAL KIT 1KW POWER DRIVER BOARD497-4732 - EVAL KIT 300W POWER DRIVER BOARD497-4731 - EVAL KIT PWR DRIVER CONTROL BRD
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Other names
497-4866
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MOTOR CONTROLLER (Cont’d)
10.6.9.1 MPHST Phase State Register
A preload register enables software to asynchro-
nously update the channel configuration for the
next step (during the previous commutation inter-
rupt routine for example): the OO[5:0] bits in the
MPHST register are copied to the Phase register
on a C event.
Table 49. Output State
Direct access to the phase register is also possible
when the DAC bit in the MCRA register is set.
Note: In Direct Access Mode (DAC bit is set in
MCRA register):
1: A C event is generated as soon as there is a
write access to OO[5:0] bits in MPHST register,
2: The PWM application is selected by the OS0 bit
in the MCRB register,
3: Regardless of the value of the CKE bit in the
MCRA register, the MTIM Clock is disabled and D
and Z events are not detected.
Table 50. DAC and MOE Bit Meaning
*Note: The reset state of the outputs can be either
high impedance, low or high state depending on
the corresponding option bit.
The polarity register is used to match the polarity
of the power drivers keeping the same control log-
ic and software. If one of the OPx bits in the MPOL
register is set, this means the switch x is ON when
MCOx is V
Each output status depends also on the momen-
tary state of the PWM, its group (low or high), and
the peripheral state.
PWM Features
The outputs can be split in two PWM groups in or-
der to differentiate the high side and the low side
switches. This output property can be pro-
MOE
bit
OP[5:0] bit
0
1
1
0
0
1
1
DAC
DD
bit
0
1
x
.
MPHST register value (depending on
MPOL, MPAR register values and
OO[5:0] bit
PWM setting) see
0
1
0
1
Effect on Output
running mode
Reset state*
Standard
0-(PWM allowed)
1-(PWM allowed)
MCO[5:0] Pin
Table 74
1 (OFF)
0 (OFF)
grammed using the OE[5:0] bits in the MPAR reg-
ister.
Table 51. Meaning of the OE[5:0] Bits
The multiplexer directs the PWM to the upper
channel, the lower channel or both of them alter-
natively or simultaneously according to the periph-
eral state.
This means that the PWM can affect any of the up-
per or lower channels allowing the selection of the
most appropriate reference potential when free-
wheeling the motor in order to:
The OS[2:0] bits in the MCRB register allow the
PWM configuration to be configured for each case
as shown in
During demagnetization, the OS2 bit is used to
control PWM mode, and it is latched in a preload
register so it can be modified when a commutation
event occurs and the configuration is active imme-
diately.
The OS1 bit is used to control the PWM between
the D and Z events to control back-emf detection.
OS0 bit will allow to control the PWM signal be-
tween Z event and next C event.
Note about demagnetization speed-up: during
demagnetization the voltage on the winding has to
be as high as possible in order to reduce the de-
magnetization time. Software can apply a different
PWM configuration on the outputs between the C
and D events, to force the free wheeling on the ap-
propriate diodes to maximize the demagnetization
voltage.
10.6.9.2 Emergency Feature
When the NMCES pin goes low
– The tristate output buffer is put in reset state
– The MOE bit in the MCRA register is reset
– An interrupt request is sent to the CPU if the EIM
This bit can be connected to an alarm signal from
the drivers, thermal sensor or any other security
component.
This feature functions even if the MCU oscillator is
off.
asynchronously
bit in the MIMR register is set
– Improve system efficiency
– Speed up the demagnetization phase
– Enable Back EMF zero crossing detection.
OE[5:0]
0
1
Figure 110
ST7MC1xx/ST7MC2xx
and
Figure
Channel group
High channel
Low channel
109.
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