ST72F561R9TA STMicroelectronics, ST72F561R9TA Datasheet - Page 59

• Manufacturer Part Number: ST72F561R9TA
• Description: IC MCU 8BIT 60K FLASH 64-LQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72F561R9TA

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: CAN, LINSCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 48
• Program Memory Size: 60KB (60K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 3.8 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LQFP
• For Use With: 497-8374 - BOARD DEVELOPMENT FOR ST72F561
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

ON-CHIP PERIPHERALS (Cont’d)
10.2 MAIN CLOCK CONTROLLER WITH REAL TIME CLOCK MCC/RTC
The Main Clock Controller consists of three differ-
ent functions:
■
■
■
Each function can be used independently and si-
multaneously.
10.2.1 Programmable CPU Clock Prescaler
The programmable CPU clock prescaler supplies
the clock for the ST7 CPU and its internal periph-
erals. It manages SLOW power saving mode (See
Section 8.2 "SLOW MODE"
The prescaler selects the f
cy and is controlled by three bits in the MCCSR
register: CP[1:0] and SMS.
Figure 39. Main Clock Controller (MCC/RTC) Block Diagram
a programmable CPU clock prescaler
a clock-out signal to supply external devices
a real time clock timer with interrupt capability
f
OSC2
CPU
MCCSR
DIV 2, 4, 8, 16
MCO
for more details).
main clock frequen-
CP1 CP0
SMS
TB1 TB0 OIE
COUNTER
RTC
10.2.2 Clock-out Capability
The clock-out capability is an alternate function of
an I/O port pin that outputs a f
external devices. It is controlled by the MCO bit in
the MCCSR register.
10.2.3 Real Time Clock Timer (RTC)
The counter of the real time clock timer allows an
interrupt to be generated based on an accurate
real time clock. Four different time bases depend-
ing directly on f
functionality is controlled by 4 bits of the MCCSR
register: TB[1:0], OIE and OIF.
When the RTC interrupt is enabled (OIE bit set),
the ST7 enters ACTIVE HALT mode when the
HALT instruction is executed. See
"ACTIVE HALT MODE"
OIF
WATCHDOG
OSC2
TIMER
f
TO
CPU
MCC/RTC INTERRUPT
are available. The whole
for more details.
PERIPHERALS
TO CPU AND
CPU CLOCK
MCO
OSC2
clock to drive
Section 8.5
ST72561
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