ST7FDALIF2M6 STMicroelectronics, ST7FDALIF2M6 Datasheet - Page 35

• 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
9.4.2
Note:
RC control register (RCCR)
Read / Write
Reset Value: 1111 1111 (FFh)
Bits 7:0 = CR[7:0] RC Oscillator Frequency Adjustment Bits
These bits must be written immediately after reset to adjust the RC oscillator frequency and
to obtain an accuracy of 1%. The application can store the correct value for each voltage
range in EEPROM and write it to this register at start-up.
00h = maximum available frequency
FFh = lowest available frequency
To tune the oscillator, write a series of different values in the register until the correct
frequency is reached. The fastest method is to use a dichotomy starting with 80h.
Figure 12. Clock management block diagram
CLKIN
CLKIN
/OSC1
OSC2
CR70
7
1-16 MHZ
or 32kHz
f
OSC2
CR7
OSC
OSCRANGE[2:0]
CR60
CLKIN
OSC,PLLOFF,
CLKIN
CR6
/32 DIVIDER
Option bits
CR5
1% RC
Tunable
CR4
CR50
Oscillator
CR3
f
OSC
DIVIDER
CR2
LITE TIMER 2 COUNTER
/2
f
f
OSC2
OSC2
CR40
MCO
DIVIDER
CR1
/2
/32
8-BIT
SMS
f
1
CPU
0
CR0
MCCSR
PLL 1MHz -> 8MHz
PLL 1MHz -> 4MHz
CLKIN/2
CR30
RCCR
Supply, reset and clock management
8MHz -> 32MHz
PLL
(1ms timebase @ 8 MHz f
CR20
f
LTIMER
RC OSC
PLLx4x8
CLKIN/2
OSC/2
f
CPU
OSCRANGE[2:0]
OSC,PLLOFF,
Option bits
AT TIMER 2
TO CPU AND
PERIPHERALS
CR10
12-BIT
f
CPU
f
OSC2
OSC2
)
CR
0
35/171
MCO
0