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参数资料
| 型号： | ST7PLITEUS5U3TR |
| 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, DSO8 |
| 封装： | LEAD FREE, DFN-8 |
| 文件页数： | 28/108页 |
| 文件大小： | 1957K |
| 代理商： | ST7PLITEUS5U3TR |
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ST7LITEUSx
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INTERRUPTS (cont’d)
Figure 14. Interrupt Processing Flowchart
Table 7. Interrupt Mapping
Notes:
1. This interrupt exits the MCU from “Auto Wake-up from HALT” mode only.
2. This interrupt exits the MCU from “WAIT” and “ACTIVE-HALT” modes only. Moreover, IS4[1:0] = 01 is the only safe
configuration to avoid spurious interrupt in HALT and AWUFH mode
3. These interrupts exit the MCU from “ACTIVE-HALT” mode only.
N°
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
AWU
Auto Wakeup Interrupt
AWUCSR
yes 1)
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
Not used
no
FFF2h-FFF3h
5
ei3
External Interrupt 3
yes
FFF0h-FFF1h
6 2)
ei4 2)
External Interrupt 4 2)
no 2)
FFEEh-FFEFh
7
SI
AVD interrupt
SICSR
no
FFECh-FFEDh
8
AT TIMER
AT TIMER Output Compare Interrupt
PWMxCSR
or ATCSR
no
FFEAh-FFEBh
9
AT TIMER Overflow Interrupt
ATCSR
yes 3)
FFE8h-FFE9h
10
LITE TIMER
LITE TIMER Input Capture Interrupt
LTCSR
no
FFE6h-FFE7h
11
LITE TIMER RTC1 Interrupt
LTCSR
yes 3)
FFE4h-FFE5h
12
Not used
no
FFE2h-FFE3h
13
Not used
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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