ST7FDALIF2M6 STMicroelectronics, ST7FDALIF2M6 Datasheet - Page 73

• Manufacturer Part Number: ST7FDALIF2M6
• Description: IC MCU 8BIT 8K 20-SOIC
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST7FDALIF2M6

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: DALI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 15
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 5.5 V
• Data Converters: A/D 7x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SOIC (7.5mm Width)
• Processor Series: ST7DALI
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 384 B
• Interface Type: DALI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 15
• Number Of Timers: 4 bit
• Operating Supply Voltage: 2.4 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST7FLITE-SK/RAIS, ST7DALI-EVAL, ST7MDT10-DVP3, ST7MDT10-EMU3, STX-RLINK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit
• For Use With: 497-5046 - KIT TOOL FOR ST7/UPSD/STR7 MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2131-5

ST7DALIF2
14.3
14.3.1
Note:
Figure 33. Block diagram
Functional description
PWM mode
This mode allows up to four Pulse Width Modulated signals to be generated on the PWMx
output pins. The PWMx output signals can be enabled or disabled using the OEx bits in the
PWMCR register.
PWM frequency and duty cycle
The four PWM signals have the same frequency (f
period and the ATR register value.
f
Following the above formula,
●
●
The maximum value of ATR is 4094 because it must be lower than the DCR value which
must be 4095 in this case.
At reset, the counter starts counting from 0.
When a upcounter overflow occurs (OVF event), the preloaded Duty cycle values are
transferred to the Duty Cycle registers and the PWMx signals are set to a high level. When
PWM
ATIC
If f
4092), the minimum value is 8 kHz (ATR register value = 0)
If f
4094),the minimum value is 1 KHz (ATR register value = 0).
= f
COUNTER
COUNTER
COUNTER
f
(1 ms
@ 8MHz)
LTIMER
timebase
32 MHz
f
CPU
12-BIT DUTY CYCLE VALUE (shadow)
Preload
DCR0H
4 PWM Channels
ATCSR
is 32 MHz, the maximum value of f
is 4 Mhz
/ (4096 - ATR)
0
ATICR
Preload
DCR0L
on OVF Event
IF TRAN=1
ICF
,
12-BIT INPUT CAPTURE REGISTER
the maximum value of f
ICIE
f
COUNTER
IC INTERRUPT
CK1
REQUEST
CNTR
ATR
CK0
12-BIT AUTORELOAD REGISTER
OVF
12-BIT UPCOUNTER
CMPFx bit
COMP-
PARE
OVFIE
PWM
PWM
PWM
CMPF3
CMPF0
CMPF1
CMPF2
CMPIE
) which is controlled by the counter
is 2 MHz (ATR register value =
is 8 MHz (ATR register value =
12-bit autoreload timer 2 (AT2)
OVF INTERRUPT
REQUEST
f
PWM
OPx bit
POL-
ARITY
CMP
REQUEST
INTERRUPT
OEx bit
PWMx
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