参数资料
型号: ST7FLITE19BF0B6
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDIP20
封装: 0.300 INCH, ROHS COMPLIANT, PLASTIC, DIP-20
文件页数: 91/159页
文件大小: 2855K
代理商: ST7FLITE19BF0B6
ST7LITE1xB
37/159
INTERRUPTS (cont’d)
Figure 21. Interrupt Processing Flowchart
Table 5. Interrupt Mapping
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.
Source
Block
Description
Register
Label
Priority
Order
Exit
from
HALT or
AWUFH
Address
Vector
RESET
Reset
N/A
Highest
Priority
Lowest
Priority
yes
FFFEh-FFFFh
TRAP
Software Interrupt
no
FFFCh-FFFDh
0
AWU
Auto Wake Up Interrupt
AWUCSR
yes1)
FFFAh-FFFBh
1
ei0
External Interrupt 0
N/A
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
LITE TIMER LITE TIMER RTC2 interrupt
LTCSR2
no
FFF0h-FFF1h
6
Comparator Comparator Interrupt
CMPCR
no
FFEEh-FFEFh
7
SI
AVD interrupt
SICSR
no
FFECh-FFEDh
8
AT TIMER
AT TIMER Output Compare Interrupt
or Input Capture Interrupt
PWMxCSR
or ATCSR
no
FFEAh-FFEBh
9
AT TIMER Overflow Interrupt
ATCSR
yes2)
FFE8h-FFE9h
10
LITE TIMER
LITE TIMER Input Capture Interrupt
LTCSR
no
FFE6h-FFE7h
11
LITE TIMER RTC1 Interrupt
LTCSR
yes2)
FFE4h-FFE5h
12
SPI
SPI Peripheral Interrupts
SPICSR
yes
FFE2h-FFE3h
13
AT TIMER
AT TIMER Overflow Interrupt
ATCSR2
no
FFE0h-FFE1h
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?
1
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