68HC05JB3 Datasheet, PDF (31/134 Pages) Freescale Semiconductor, Inc – 8-bit microcontroller units (MCUs)

Freescale Semiconductor, Inc.
November 5, 1998 GENERAL RELEASE SPECIFICATION
SECTION 4
INTERRUPTS
The MCU can be interrupted in six different ways:
• Non-maskable Software Interrupt Instruction (SWI)
• External Asynchronous Interrupt (IRQ)
• External Interrupt via IRQ on PA0-PA3 (mask option)
• USB Interrupt
• Timer1 Interrupt (16-bit Timer)
• Multi-Function Timer Interrupt
4.1 INTERRUPT VECTORS
Table 4-1. Reset/Interrupt Vector Addresses
Function
Source
Reset
Power-On Logic
RESET Pin
Low Voltage Reset
Illegal Address Reset
COP Watchdog
Software
Interrupt (SWI)
User Code
External
Interrupt (IRQ)
IRQ Pin
USB
Interrupts
TXD0F
TXD1F
RESUMP
Timer1
Interrupts
ICF Bit
OCF Bit
TOF Bit
MFT
Interrupts
CTOF Bit
RTIF Bit
Control
Bit
Global
Hardware
Mask
Local
Software
Mask
Priority
(1 = Highest)
Vector
Address
—
—
—
1
$1FFE–$1FFF
—
—
—
I Bit
—
I Bit
—
I Bit
—
I Bit
Reserved
Reserved
—
Same Priority
As Instruction
$1FFC–$1FFD
IRQE Bit
2
$1FFA–$1FFB
TXD0IE
TXD1IE
—
3
$1FF8–$1FF9
ICIE Bit
OCIE Bit
TOIE Bit
4
$1FF6–$1FF7
CTOFE Bit
RTIE Bit
5
$1FF4–$1FF5
$1FF2–$1FF3
$1FF0–$1FF1
MC68HC05JB3
REV 1
INTERRUPTS
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA
4-1