mc68hc908jb8 Freescale Semiconductor, Inc, mc68hc908jb8 Datasheet - Page 108

• Manufacturer Part Number: mc68hc908jb8
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

System Integration Module (SIM)
8.6.1.2 SWI Instruction
8.6.2 Interrupt Status Registers
Technical Data
108
SWI Instruction
USB Reset Interrupt
USB Endpoint 0 Transmit
USB Endpoint 0 Receive
USB Endpoint 1 Transmit
USB Endpoint 2 Transmit
USB Endpoint 2 Receive
USB End of Packet
USB Resume Interrupt
IRQ Interrupt (IRQ, PTE4)
TIM Channel 0
TIM Channel 1
TIM Overflow
Keyboard Interrupt
1. The I bit in the condition code register is a global mask for all interrupt sources except the SWI instruction.
2. 0 = highest priority
Source
NOTE:
The SWI instruction is a non-maskable instruction that causes an
interrupt regardless of the state of the interrupt mask (I bit) in the
condition code register.
A software interrupt pushes PC onto the stack. A software interrupt does
not push PC–1, as a hardware interrupt does.
The flags in the interrupt status registers identify maskable interrupt
sources.
status register flags that they set. The interrupt status registers can be
useful for debugging.
RESUMF
PTE4IF
RXD0F
RXD2F
TXD0F
TXD1F
TXD2F
EOPF
Flags
RSTF
CH0F
CH1F
KEYF
IRQF
TOF
Table 8-4. Interrupt Sources
Table 8-4
System Integration Module (SIM)
IMASKK
RXD0IE
RXD2IE
Mask
TXD0IE
TXD1IE
TXD2IE
URSTD
IMASK
EOPIE
CH0IE
CH1IE
TOIE
—
(1)
summarizes the interrupt sources and the interrupt
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
INT Register Flag
IF2
IF1
IF3
IF4
IF5
IF6
—
Priority
0
1
2
3
4
5
6
Freescale Semiconductor
(2)
Vector Address
$FFFC–$FFFD
$FFFA–$FFFB
$FFF8–$FFF9
$FFF6–$FFF7
$FFF4–$FFF5
$FFF2–$FFF3
$FFF0–$FFF1