ST7PLIT110BF0M3 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
ST7PLIT110BF0M3
STMicroelectronics
ST7PLIT110BF0M3 Datasheet PDF : 159 Pages
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INTERRUPTS (cont’d)
Figure 21. Interrupt Processing Flowchart
FROM RESET
N
I BIT SET?
Y
FETCH NEXT INSTRUCTION
ST7LITE1xB
N
INTERRUPT
PENDING?
Y
N
EXECUTE INSTRUCTION
IRET?
Y
STACK PC, X, A, CC
SET I BIT
LOAD PC FROM INTERRUPT VECTOR
RESTORE PC, X, A, CC FROM STACK
THIS CLEARS I BIT BY DEFAULT
Table 5. Interrupt Mapping
N°
Source
Block
Description
Register
Label
Exit
Priority from
Order HALT or
AWUFH
Address
Vector
RESET Reset
TRAP Software Interrupt
0
AWU Auto Wake Up Interrupt
N/A Highest
Priority
AWUCSR
1
ei0
External Interrupt 0
2
ei1
External Interrupt 1
N/A
3
ei2
External Interrupt 2
4
ei3
External Interrupt 3
5 LITE TIMER LITE TIMER RTC2 interrupt
LTCSR2
6 Comparator Comparator Interrupt
CMPCR
7
SI
AVD interrupt
SICSR
8
AT TIMER Output Compare Interrupt
AT TIMER or Input Capture Interrupt
PWMxCSR
or ATCSR
9
AT TIMER Overflow Interrupt
ATCSR
10
LITE TIMER Input Capture Interrupt
LITE TIMER
11
LITE TIMER RTC1 Interrupt
12
SPI
SPI Peripheral Interrupts
13 AT TIMER AT TIMER Overflow Interrupt
LTCSR
LTCSR
SPICSR
ATCSR2
Lowest
Priority
Note 1: This interrupt exits the MCU from “Auto Wake-up from Halt” mode only.
Note 2 : These interrupts exit the MCU from “ACTIVE-HALT” mode only.
yes
no
yes1)
yes
no
no
no
no
yes2)
no
yes2)
yes
no
FFFEh-FFFFh
FFFCh-FFFDh
FFFAh-FFFBh
FFF8h-FFF9h
FFF6h-FFF7h
FFF4h-FFF5h
FFF2h-FFF3h
FFF0h-FFF1h
FFEEh-FFEFh
FFECh-FFEDh
FFEAh-FFEBh
FFE8h-FFE9h
FFE6h-FFE7h
FFE4h-FFE5h
FFE2h-FFE3h
FFE0h-FFE1h
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