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ST72311R Datasheet(PDF) 42 Page - STMicroelectronics

Part # ST72311R
Description  8-BIT MCU WITH NESTED INTERRUPTS, EEPROM, ADC, 16-BIT TIMERS, 8-BIT PWM ART, SPI, SCI, CAN INTERFACES
PDF  164 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72311R Datasheet(HTML) 42 Page - STMicroelectronics

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I/O PORTS (Cont’d)
8.4 LOW POWER MODES
8.5 INTERRUPTS
The external interrupt event generates an interrupt
if the corresponding configuration is selected with
DDR and OR registers and the interrupt mask in
the CC register is not active (RIM instruction).
Table 11. Port Configuration
* Note: when the CANTX alternate function is selected the IO port operates in output push-pull mode.
Mode
Description
WAIT
No effect on I/O ports. External interrupts
cause the device to exit from WAIT mode.
HALT
No effect on I/O ports. External interrupts
cause the device to exit from HALT mode.
Interrupt Event
Event
Flag
Enable
Control
Bit
Exit
from
Wait
Exit
from
Halt
External interrupt on
selected external
event
-
DDRx
ORx
Yes
Yes
Port
Pin name
Input
Outpu t
OR = 0
OR = 1
OR = 0
OR = 1
High-Sink
Port A
PA7:6
floating
true open-drain
Yes
PA5:4
floating
pull-up
open drain
push-pull
PA3
floating
floating interrupt
open drain
push-pull
No
PA2:0
floating
pull-up interrupt
open drain
push-pull
Port B
PB4, PB3
floating
floating interrupt
open drain
push-pull
PB7:5, PB2:0
floating
pull-up interrupt
open drain
push-pull
Port C
PC7:0
floating
pull-up
open drain
push-pull
PC3:2 only
Port D
PD7:0
floating
pull-up
open drain
push-pull
No
Port E
PE7:3, PE1:0
floating
pull-up
open drain
push-pull
PE7:4 only
PE2
pull-up input only *
No
Port F
PF7:3
floating
pull-up
open drain
push-pull
PF7:6 only
PF2
floating
floating interrupt
open drain
push-pull
No
PF1:0
floating
pull-up interrupt
open drain
push-pull



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