MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 217

• Manufacturer Part Number: MPC555CME
• Description: KIT EVALUATION FOR MPC555
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC555CME

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC555
• Data Bus Width: 32 bit
• Interface Type: RS-232
• For Use With/related Products: MPC555
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

MPC555
USER’S MANUAL
IRQ[0:6]
IRQ[7:31]
IMB3 Interrupts:
If programmed to generate interrupts, the SWT and external pin IRQ[0] always gener-
ate a non-maskable interrupt (NMI) to the RCPU. Notice that the RCPU takes the sys-
tem reset interrupt when an NMI is asserted and the external interrupt for any other
interrupt asserted by the interrupt controller.
Each one of the external pins IRQ[1:7] has its own dedicated assigned priority level.
IRQ[0] is also mapped but should be used only as a status bit indicating that IRQ[0]
was asserted and generated an NMI interrupt. There are eight additional interrupt pri-
Interrupt
Levels
32
IMB3
→Level 0:6
IRQ[0:7]
UIMB
→Level 7
/
MPC556
Figure 6-4 MPC555 / MPC556 Interrupt Structure
SIU
Detect
Edge
SYSTEM CONFIGURATION AND PROTECTION
Change of Lock
Debug
DEC
RTC
PIT
Rev. 15 October 2000
TB
8
8
8
8
8
SWT
Level 7
Level 6
Level 5
Level 4
Level 3
Level 2
Level 1
Level 0
IRQ0
I7
I6
I5
I4
I3
I2
I1
I0
Generate
NMI
IREQ
DEC
Debug
IRQOUT
MOTOROLA
RCPU
NMI
6-9