ST72324LK2 STMicroelectronics, ST72324LK2 Datasheet - Page 52
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ST72324LK2
Manufacturer Part Number
ST72324LK2
Description
3V RANGE 8-BIT MCU WITH 8 TO 32K FLASH/ROM, 10-BIT ADC, 4 TIMERS, SPI, SCI INTERFACE
Manufacturer
STMicroelectronics
Datasheet
1.ST72324LK2.pdf
(154 pages)
Specifications of ST72324LK2
Hdflash Endurance
100 cycles, data retention
Clock Sources
crystal/ceramic resonator oscillators, internal RC oscillator, and bypass for external clock
Four Power Saving Modes
Halt, Active-Halt, Wait and Slow
Main Clock Controller With
Real time base, Beep and Clock-out capabilities
16-bit Timer A With
1 input capture, 1 output compare, external clock input, PWM and pulse generator modes
16-bit Timer B With
2 input captures, 2 output compares, PWM and pulse generator modes
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ST72324Lxx
MAIN CLOCK CONTROLLER WITH REAL TIME CLOCK (Cont’d)
Bit 0 = OIF Oscillator interrupt flag
This bit is set by hardware and cleared by software
reading the MCCSR register. It indicates when set
that the main oscillator has reached the selected
elapsed time (TB1:0).
0: Timeout not reached
1: Timeout reached
CAUTION: The BRES and BSET instructions
must not be used on the MCCSR register to avoid
unintentionally clearing the OIF bit.
Table 16. Main Clock Controller Register Map and Reset Values
52/154
1
Address
002Dh
(Hex.)
002Ch
MCCSR
Reset Value
MCCBCR
Reset Value
Register
Label
MCO
7
0
0
CP1
6
0
0
CP0
5
0
0
MCC BEEP CONTROL REGISTER (MCCBCR)
Read / Write
Reset Value: 0000 0000 (00h)
Bit 7:2 = Reserved, must be kept cleared.
Bit 1:0 = BC[1:0] Beep control
These 2 bits select the PF1 pin beep capability.
The beep output signal is available in ACTIVE-
HALT mode but has to be disabled to reduce the
consumption.
BC1
7
0
SMS
0
0
1
1
4
0
0
0
BC0
0
1
0
1
TB1
3
0
0
0
Beep mode with f
0
~500-Hz
~1-KHz
~2-KHz
TB0
2
0
0
0
Off
BC1
OIE
0
~50% duty cycle
1
0
0
OSC2
Beep signal
BC1
Output
=8MHz
BC0
OIF
0
0
0
BC0
0
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