參數(shù)資料
型號: MC68HC05PL4P
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.56 MHz, MICROCONTROLLER, PDIP28
封裝: PLASTIC, DIP-28
文件頁數(shù): 18/98頁
文件大?。?/td> 1019K
代理商: MC68HC05PL4P
April 30, 1998
GENERAL RELEASE SPECIFICATION
MC68HC05PL4
INTERRUPTS
MOTOROLA
REV 2.0
4-1
SECTION 4
INTERRUPTS
The CPU can be interrupted by ve different sources – one software and four
hardware:
Non-maskable Software Interrupt Instruction (SWI)
External Asynchronous Interrupt (IRQ)
16-Bit Timer
8-Bit Timer
Keyboard Interrupt
4.1
INTERRUPT VECTORS
Table 4-1 summarizes the reset and interrupt sources and vector assignments
Table 4-1. Vector Address for Interrupts and Reset
Function
Source
Local
Mask
Global
Mask
Priority
(1=Highest)
Vector
Address
Reset
Power-On Logic
None
1
$1FFE-$1FFF
RESET Pin
None
COP Watchdog
COPON1
SWI
User Code
None
Same Priority
As Instruction
$1FFC-$1FFD
External IRQ
IRQ Pin
IRQEN
I Bit
2
$1FFA-$1FFB
16-Bit Timer
ICF Bit
ICIE
I Bit
3
$1FF8-$1FF9
TCF Bit
TCIE
OCF Bit
OCIE
8-Bit Timer
T8IF Bit
T8IE
I Bit
4
$1FF6-$1FF7
Keyboard
KIF3 Bit
KIE3
I Bit
5
$1FF4-$1FF5
KIF2 Bit
KIE2
KIF1 Bit
KIE1
KIF0 Bit
KIE0
Reserved
$1FF2-$1FF3
Reserved
$1FF0-$1FF1
NOTES:
1. COPON enables/disables the COP watchdog timer.
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