ST7FDALIF2M6 STMicroelectronics, ST7FDALIF2M6 Datasheet - Page 96

• 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

DALI communication module
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Figure 44. Example of DALI signal sampling
Register description
DCM data rate control register (DCMCLK)
Read / Write
Reset Value: 0000 0000 (00h)
Bits 7:0 = DCMCLK[7:0] Clock Prescaler.
These bits are set/cleared by software and cleared by hardware after a reset.
These 8 bits are used for tuning the DALI data rate. f
integer value of the DCMCLK register.
DCM forward address register (DCMFA)
Read only
Reset Value: 0000 0000 (00h)
CK7
FA7
7
7
DALI Signal
Edge Trigger
4-bit sample
clock counter
(/16 divider)
DCMCSR[3:0]
bits
Legend:
m = (DCMCLK integer value+1) x t
f
f
t
Example:
DALI
CPU
CPU
= 8 MHz
=
= 1.2 kHz
f
CPU
CK6
FA6
1
t
N = 207 (DCMCLK)
t
CPU
CPU
0000
CK5
FA5
m
= 125ns
0001
0000
CPU
CK4
FA4
833.33µs
m = 26 µs (208 x 125ns)
1111 0000
t
CPU
CK3
FA3
DATA
= f
1111
CPU
CK2
FA2
/[(N+1)*16] where N is the
xxxx
CK1
FA1
t
CPU
0000
xxxx
ST7DALIF2
CK0
FA0
0
0