ST72344S4 STMicroelectronics, ST72344S4 Datasheet - Page 107

• Manufacturer Part Number: ST72344S4
• Description: 8-bit MCU
• Manufacturer: STMicroelectronics

Specifications of ST72344S4

• Up To 16 Kbytes Program Memory: single voltage extended Flash (XFlash) with readout and write protection, in-circuit and inapplication programming (ICP and IAP). 10K write/erase cycles guaranteed, data retention
• 256 Bytes Data Eeprom With Readout Protection. 300k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55 °C.
• Clock Sources: crystal/ceramic resonator oscillators, high-accuracy internal RC oscillator or external clock
• 5 Power-saving Modes: Slow, Wait, Halt, Auto-wakeup from Halt and Active-halt
• 16-bit Timer A With: 1 input capture, 1 output compares, external clock input, PWM and pulse generator modes
• 16-bit Timer B With: 2 input captures, 2 output compares, PWM and pulse generator modes

ST72344xx ST72345xx
11.3.4
11.3.5
Note:
Low-power modes
Table 47.
Interrupts
Table 48.
The 16-bit timer interrupt events are connected to the same interrupt vector (see Interrupts
chapter). These events generate an interrupt if the corresponding Enable Control Bit is set
and the interrupt mask in the CC register is reset (RIM instruction).
Wait
Halt
Input Capture 1 event/Counter reset in PWM mode
Input Capture 2 event
Output Compare 1 event (not available in PWM mode)
Output Compare 2 event (not available in PWM mode)
Timer overflow event
Mode
No effect on 16-bit timer.
Timer interrupts cause the Device to exit from Wait mode.
16-bit timer registers are frozen.
In Halt mode, the counter stops counting until Halt mode is exited. Counting resumes from
the previous count when the Device is woken up by an interrupt with “exit from Halt mode”
capability or from the counter reset value when the Device is woken up by a reset.
If an input capture event occurs on the ICAPi pin, the input capture detection circuitry is
armed. Consequently, when the Device is woken up by an interrupt with “exit from Halt
mode” capability, the ICFi bit is set, and the counter value present when exiting from Halt
mode is captured into the ICiR register.
Low-power mode description
Interrupt events
Interrupt event
Doc ID 12321 Rev 5
Description
Event
OCF1
OCF2
ICF1
ICF2
TOF
flag
control bit
Enable
OCIE
TOIE
ICIE
On-chip peripherals
Exit from
Wait
Yes
Yes
Yes
Yes
Yes
Exit from
Halt
107/247
No
No
No
No
No