参数资料
型号: SAF-XC164D-32R40F
厂商: INFINEON TECHNOLOGIES AG
元件分类: 微控制器/微处理器
英文描述: 16-BIT, MROM, 40 MHz, MICROCONTROLLER, PQFP100
封装: 0.50 MM PITCH, GREEN, PLASTIC, TQFP-100
文件页数: 24/75页
文件大小: 1136K
代理商: SAF-XC164D-32R40F
XC164D-32
Derivatives
Functional Description
Data Sheet
28
V1.0, 2006-08
The XC164D 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 5 shows all of the possible exceptions or error conditions that can arise during run-
time:
Table 5
Hardware Trap Summary
Exception Condition
Trap
Flag
Trap
Vector
Location1)
1) Register VECSEG defines the segment where the vector table is located to.
Trap
Number
Trap
Priorit
y
Reset Functions:
Hardware Reset
Software Reset
Watchdog Timer
Overflow
RESET
xx’0000H
00H
III
Class A Hardware Traps:
Non-Maskable Interrupt
Stack Overflow
Stack Underflow
Software Break
NMI
STKOF
STKUF
SOFTBRK
NMITRAP
STOTRAP
STUTRAP
SBRKTRAP
xx’0008H
xx’0010H
xx’0018H
xx’0020H
02H
04H
06H
08H
II
Class B Hardware Traps:
Undefined Opcode
PMI Access Error
Protected Instruction
Fault
Illegal Word Operand
Access
UNDOPC
PACER
PRTFLT
ILLOPA
BTRAP
xx’0028H
0AH
I
Reserved
[2CH - 3CH][0BH -
0FH]
Software Traps
TRAP Instruction
––
Any
[xx’0000H -
xx’01FCH]
in steps of
4H
Any
[00H -
7FH]
Current
CPU
Priority
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