參數(shù)資料
型號(hào): ST7PLITE02Y0B6
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PDIP16
封裝: 0.300 INCH, PLASTIC, DIP-16
文件頁數(shù): 51/125頁
文件大?。?/td> 1956K
代理商: ST7PLITE02Y0B6
ST7LITE0x, ST7LITESx
31/125
INTERRUPTS (Cont’d)
Figure 17. Interrupt Processing Flowchart
Table 6. Interrupt Mapping
I BIT SET?
Y
N
IRET?
Y
N
FROM RESET
LOAD PC FROM INTERRUPT VECTOR
STACK PC, X, A, CC
SET I BIT
FETCH NEXT INSTRUCTION
EXECUTE INSTRUCTION
THIS CLEARS I BIT BY DEFAULT
RESTORE PC, X, A, CC FROM STACK
INTERRUPT
Y
N
PENDING?
Source
Block
Description
Register
Label
Priority
Order
Exit
from
HALT
Address
Vector
RESET
Reset
N/A
Highest
Priority
Lowest
Priority
yes
FFFEh-FFFFh
TRAP
Software Interrupt
no
FFFCh-FFFDh
0
Not used
FFFAh-FFFBh
1
ei0
External Interrupt 0
yes
FFF8h-FFF9h
2
ei1
External Interrupt 1
FFF6h-FFF7h
3
ei2
External Interrupt 2
FFF4h-FFF5h
4
ei3
External Interrupt 3
FFF2h-FFF3h
5
Not used
FFF0h-FFF1h
6
Not used
FFEEh-FFEFh
7
SI
AVD interrupt
SICSR
no
FFECh-FFEDh
8
AT TIMER
AT TIMER Output Compare Interrupt
PWM0CSR
no
FFEAh-FFEBh
9
AT TIMER Overflow Interrupt
ATCSR
yes
FFE8h-FFE9h
10
LITE TIMER
LITE TIMER Input Capture Interrupt
LTCSR
no
FFE6h-FFE7h
11
LITE TIMER RTC Interrupt
LTCSR
yes
FFE4h-FFE5h
12
SPI
SPI Peripheral Interrupts
SPICSR
yes
FFE2h-FFE3h
13
Not used
FFE0h-FFE1h
1
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