ST72C334J4TAE STMicroelectronics, ST72C334J4TAE Datasheet - Page 35

• Manufacturer Part Number: ST72C334J4TAE
• Description: 8-bit MCU for automotive with single voltage Flash/ROM memory, ADC, 16-bit timers, SPI, SCI interfaces
• Manufacturer: STMicroelectronics

INTERRUPTS (Cont’d)
Figure 17. Interrupt Processing Flowchart
Table 6. Interrupt Mapping
Notes:
1. Valid for Halt and Active Halt modes except for the MCC/RTC or CSS interrupt source which exits from Active Halt
mode only.
No.
10
11
12
13
0
1
2
3
4
5
6
7
8
9
FROM RESET
Data-EEPROM Data EEPROM Interrupt
MCC/RTC
TIMER A
TIMER B
Source
RESET
Block
TRAP
CSS
SPI
SCI
ei0
ei1
ei2
ei3
EXECUTE INSTRUCTION
Reset
Software Interrupt
Not used
Main Clock Controller Time Base Interrupt
or Clock Security System Interrupt
External Interrupt Port A3..0
External Interrupt Port F2..0
External Interrupt Port B3..0
External Interrupt Port B7..4
Not used
SPI Peripheral Interrupts
TIMER A Peripheral Interrupts
TIMER B Peripheral Interrupts
SCI Peripheral Interrupts
Not used
Description
RESTORE PC, X, A, CC FROM STACK
THIS CLEARS I BIT BY DEFAULT
ST72334xx-Auto, ST72314xx-Auto, ST72124Jx-Auto
FETCH NEXT INSTRUCTION
N
I BIT SET?
IRET?
Y
Y
Register
MCCSR
EECSR
SPISR
SCISR
CRSR
Label
TASR
TBSR
N/A
N/A
N
LOAD PC FROM INTERRUPT VECTOR
Priority
Highest
Lowest
Priority
Priority
Order
N
STACK PC, X, A, CC
INTERRUPT
PENDING?
SET I BIT
Halt
from
Exit
yes
yes
no
no
Y
1)
FFECh-FFEDh
FFFCh-FFFDh
FFEEh-FFEFh
FFEAh-FFEBh
FFFEh-FFFFh
FFFAh-FFFBh
FFE8h-FFE9h
FFE6h-FFE7h
FFE4h-FFE5h
FFE2h-FFE3h
FFE0h-FFE1h
FFF8h-FFF9h
FFF6h-FFF7h
FFF4h-FFF5h
FFF2h-FFF3h
FFF0h-FFF1h
Address
Vector
35/150