BMSKTOPASA900(DCE) Toshiba, BMSKTOPASA900(DCE) Datasheet - Page 90

• Manufacturer Part Number: BMSKTOPASA900(DCE)
• Description: KIT STARTER TMPA900 USB JTAG
• Manufacturer: Toshiba
• Series: TOPASr
• Type: MCUr

Specifications of BMSKTOPASA900(DCE)

• Contents: Evaluation Board, Cable(s), Software and Documentation
• For Use With/related Products: TMPA900CMXBG
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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Interrupt vector flowchart
Execute the Interrupt Service Routine
Restore register contents from the stack
(Clear Hardware priority level in VIC)
VICSOFTCLEAR register if generated
Read the VICADDRESS register and
Branch to the interrupt vector
Save register contents on the stack
Branches to IRQ interrupt processing
(to enable servicing of interrupts of
Enable IRQ interrupts in CPU
Clear the requesting interrupt in
Return from the Interrupt Service
Write to VICADDRESS register.
CPU branches to 0x00000018
Disable IRQ interrupt in CPU
Clear the interrupt request by
(& disable interrupts)
An interrupt occurs
higher priority)
VIC checks if the
interrupt is FIQ ?
Routine (ISR).
by software.
peripheral
(ISR)
End
NO
TENTATIVE
TMPA900CM- 89
YES
Branches to FIQ interrupt processing
VICSOFTCLEAR register if generated
Save register contents on the stack
Restore register contents from the stack
Execute the Interrupt Service Routine
Branch to the Interrrupt Service
CPU branches to 0x0000001C
Clear the requesting interrupt in
Clear the interrupt request by
Routine (ISR)
by software.
peripheral
(ISR)
The FIQ vector address is the last
exception vector address. It is therefore
possible to directly place the interrupt
service routine there.
TMPA900CM
2009-10-14