SAF-C161K-LM3V INFINEON [Infineon Technologies AG], SAF-C161K-LM3V Datasheet - Page 20
SAF-C161K-LM3V
Manufacturer Part Number
SAF-C161K-LM3V
Description
16-Bit Single-Chip Microcontroller
Manufacturer
INFINEON [Infineon Technologies AG]
Datasheet
1.SAF-C161K-LM3V.pdf
(66 pages)
- Current page: 20 of 66
- Download datasheet (2Mb)
The C161K/O 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
occurrence 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
time:
Table 4
Exception Condition
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
– Illegal Word Operand
– Illegal Instruction
– Illegal External Bus
Reserved
Software Traps
– TRAP Instruction
Data Sheet
Fault
Access
Access
Access
shows all of the possible exceptions or error conditions that can arise during run-
Hardware Trap Summary
Trap
Flag
–
NMI
STKOF
STKUF
UNDOPC
PRTFLT
ILLOPA
ILLINA
ILLBUS
–
–
Trap
Vector
RESET
RESET
RESET
NMITRAP
STOTRAP
STUTRAP
BTRAP
BTRAP
BTRAP
BTRAP
BTRAP
–
–
16
Vector
Location
00’0000
00’0000
00’0000
00’0008
00’0010
00’0018
00’0028
00’0028
00’0028
00’0028
00’0028
[2C
3C
Any
[00’0000
00’01FC
in steps
of 4
H
H
H
]
–
H
H
H
H
H
H
H
H
H
H
H
H
H
]
–
Trap
Number
00
00
00
02
04
06
0A
0A
0A
0A
0A
[0B
0F
Any
[00
7F
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
]
]
–
–
V2.0, 2001-01
Trap
Priority
III
III
III
II
II
II
I
I
I
I
I
–
Current
CPU
Priority
C161O
C161K
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