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ST7SCR bảng dữ liệu(PDF) 27 Page - STMicroelectronics

tên linh kiện ST7SCR
Giải thích chi tiết về linh kiện  8-BIT LOW-POWER, FULL-SPEED USB MCU WITH 16K FLASH, 768 RAM, SMARTCARD I/F, TIMER
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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ST7SCR bảng dữ liệu(HTML) 27 Page - STMicroelectronics

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INTERRUPTS (Cont’d)
Table 6. Dedicated Interrupt Instruction Set
Note: During the execution of an interrupt routine, the HALT, POPCC, RIM, SIM and WFI instructions
change the current software priority up to the next IRET instruction or one of the previously mentioned
instructions.
In order not to lose the current software priority level, the RIM, SIM, HALT, WFI and POP CC instructions
should never be used in an interrupt routine.
Table 7. Interrupt Mapping
Note 1: This interrupt can be used to exit from USB suspend mode.
Instruction
New Description
Function/Example
I1
H
I0
N
Z
C
HALT
Entering Halt mode
1
0
IRET
Interrupt routine return
Pop CC, A, X, PC
I1
H
I0
N
Z
C
JRM
Jump if I1:0=11
I1:0=11 ?
JRNM
Jump if I1:0<>11
I1:0<>11 ?
POP CC
Pop CC from the Stack
Mem => CC
I1
H
I0
N
Z
C
RIM
Enable interrupt (level 0 set)
Load 10 in I1:0 of CC
1
0
SIM
Disable interrupt (level 3 set)
Load 11 in I1:0 of CC
1
1
TRAP
Software trap
Software NMI
1
1
WFI
Wait for interrupt
1
0
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
ICP
FLASH Start programming NMI interrupt
FFFAh-FFFBh
1
UART
ISO7816-3 UART Interrupt
UIC
FFF8h-FFF9h
2
USB
USB Communication Interrupt
USBISTR
FFF6h-FFF7h
3
WAKUP1
External Interrupt Port C
yes
FFF4h-FFF5h
4
WAKUP2
External Interrupt Port A
yes
FFF2h-FFF3h
5
TIM
TBU Timer Interrupt
TBUSR
no
FFF0h-FFF1h
6
CARDDET 1)
Smartcard Insertion/Removal Interrupt 1)
USCUR
yes
FFEEh-FFEFh
7
ESUSP
End suspend Interrupt
USBISTR
FFECh-FFEDh
8
Not used
no
FFEAh-FFEBh
1



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