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參數(shù)資料
| 型號： | C165 |
| 廠商： | SIEMENS AG |
| 英文描述： | C16x-Family of High-Performance CMOS 16-Bit Microcontrollers |
| 中文描述： | C16x的高家庭，高性能CMOS 16位微控制器 |
| 文件頁數(shù)： | 23/77頁 |
| 文件大?。?/td> | 1371K |
| 代理商： | C165 |
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C165
Data Sheet
19
V2.0, 2000-12
The C165 also provides an excellent mechanism to identify and to process exceptions
or error conditions that arise during run-time, so-called ‘Hardware Traps’. Hardware
traps cause immediate non-maskable system reaction which is similar to a standard
interrupt service (branching to a dedicated vector table location). The occurence of a
hardware trap is additionally signified by an individual bit in the trap flag register (TFR).
Except when another higher prioritized trap service is in progress, a hardware trap will
interrupt any actual program execution. In turn, hardware trap services can normally not
be interrupted by standard or PEC interrupts.
Table 4
shows all of the possible exceptions or error conditions that can arise during run-
time:
Table 4
Exception Condition
Hardware Trap Summary
Trap
Flag
–
Trap
Vector
Vector
Location
Trap
Number
Trap
Priority
Reset Functions:
– Hardware Reset
– Software Reset
– W-dog Timer Overflow
Class A Hardware Traps:
– Non-Maskable Interrupt
– Stack Overflow
– Stack Underflow
Class B Hardware Traps:
– Undefined Opcode
– Protected Instruction
Fault
– Illegal Word Operand
Access
– Illegal Instruction
Access
– Illegal External Bus
Access
Reserved
RESET
RESET
RESET
00’0000
H
00’0000
H
00’0000
H
00
H
00
H
00
H
III
III
III
NMI
STKOF
STKUF
NMITRAP
STOTRAP
STUTRAP
00’0008
H
00’0010
H
00’0018
H
02
H
04
H
06
H
II
II
II
UNDOPC
PRTFLT
ILLOPA
ILLINA
ILLBUS
BTRAP
BTRAP
BTRAP
BTRAP
BTRAP
00’0028
H
00’0028
H
00’0028
H
00’0028
H
00’0028
H
0A
H
0A
H
0A
H
0A
H
0A
H
I
I
I
I
I
–
–
[2C
H
–
3C
H
]
Any
[00’0000
H
–
00’01FC
H
]
in steps
of 4
H
[0B
H
–
0F
H
]
Any
[00
H
–
7F
H
]
–
Software Traps
– TRAP Instruction
–
–
Current
CPU
Priority
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