BMSKTOPASA900(DCE) Toshiba, BMSKTOPASA900(DCE) Datasheet - Page 91

• 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

2) Interrupt priority: INTS[1]< INTS[2]
1) Interrupt priority: INTS[1] ≥ INTS[2]
(Low Active)
INTS[1]
(High Active)
INTS[2]
(High Active)
(Low Active)
•
Note 2:
Note 1:
Note 3: When the VICADDRESS register is read, interrupts having priority level higher than the current interrupt (INTS[1]
INTS[1]
(High Active)
INTS[2]
(High Active)
nVICIRQ
Internal
Operation Timing for Nested Interrupts
nVICIRQ
Internal
When the VICADDRESS register is read, interrupts having priority level equal to or lower than the current interrupt
(INTS[1] in the above example) are disabled and are not output to the CPU.
When the VICADDRESS register is written, the current hardware interrupt priority level (INTS[1] in the above
example) is cleared and interrupts of lower priority (INTS[2] in the above example) are enabled.
in the above example) are enabled. Since INT2 has higher priority than INTS[1], an INTS[2] interrupt request is
accepted and output to the CPU.
INTS[1] interrupt request accepted
INTS[1] interrupt
request accepted
and output to CPU
Read VICADDRESS
register (Note 1)
Read VICADDRESS
register (Note 3)
TENTATIVE
TMPA900CM- 90
INTS[2] interrupt request accepted
Write to VICADDRESS
register (Note 2)
INTS[2] interrupt request
accepted and output to
CPU.
TMPA900CM
2009-10-14