ST72F324BJ STMICROELECTRONICS [STMicroelectronics], ST72F324BJ Datasheet - Page 66
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ST72F324BJ
Manufacturer Part Number
ST72F324BJ
Description
8-bit MCU, 3.8 to 5.5 V operating range with 8 to 32 Kbyte Flash/ROM, 10-bit ADC, 4 timers, SPI, SCI
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.ST72F324BJ.pdf
(188 pages)
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On-chip peripherals
10.2.5
10.2.6
10.2.7
66/188
Low power modes
Table 36.
Interrupts
The MCC/RTC interrupt event generates an interrupt if the OIE bit of the MCCSR register is
set and the interrupt mask in the CC register is not active (RIM instruction).
Table 37.
1. The MCC/RTC interrupt wakes up the MCU from Active Halt mode, not from Halt mode.
MCC registers
MCC control/status register (MCCSR)
Table 38.
Time base overflow event
MCCSR
)
Bit
7
MCO
R/W
Active Halt
Interrupt event
7
Mode
Name
Wait
Halt
MCO
Effect of low power modes on MCC/RTC
MCC/RTC interrupt control/wake-up capability
MCCSR register description
Main Clock Out selection
This bit enables the MCO alternate function on the PF0 I/O port. It is set and
cleared by software.
0: MCO alternate function disabled (I/O pin free for general-purpose I/O).
1: MCO alternate function enabled (f
Note: To reduce power consumption, the MCO function is not active in Active Halt
mode.
6
No effect on MCC/RTC peripheral. MCC/RTC interrupt causes the device to exit
from Wait mode.
No effect on MCC/RTC counter (OIE bit is set), the registers are frozen.
MCC/RTC interrupt causes the device to exit from Active Halt mode.
MCC/RTC counter and registers are frozen. MCC/RTC operation resumes when
the MCU is woken up by an interrupt with Exit from Halt capability.
CP[1:0]
R/W
Event flag
5
OIF
SMS
R/W
4
Enable control bit Exit from WAIT Exit from HALT
Function
OIE
Description
CPU
3
on I/O port).
TB[1:0]
R/W
2
Reset value: 0000 0000 (00h)
Yes
R/W
OIE
1
ST72324B
No
R/W
(1)
OIF
0