VR4102 datasheet(293/701 Pages) NEC

293 / 701 page

CHAPTER 14 ICU (INTERRUPT CONTROL UNIT)

293

Figure 14-1. Interrupt Control Outline

MDSIUINTREG

MSYSINT1REG

MSYSINT2REG

SYSINT1REG

SYSINT2REG

DSIUINTREG

buserrint

SOFTINTREG

dozepiuint

Int0

Int1

(battint

Note)

(all interrupts except

for battint

Note and

rtclongint)

(rtclong1int)

ledint

MGIUINTLREG

GIUINTLREG

AND/OR

NMI

Int2

(rtclong2int)

Int3

(hspint)

hspint

siuint

MFIRINTREG

FIRINTREG

AND/OR

Interrupt indication registers

Interrupt mask registers

AND/OR logic

(Checking masks bit by bit

and summarizing interrupt

requests from the registers)

MKIUINTREG

KIUINTREG

MAIUINTREG

AIUINTREG

tclkint

battint

powerint

rtclong2int

rtclong1int

etimerint

MPIUINTREG

PIUINTREG

AND/OR

Level 2

Level 1

M G IUINTHREG

GIUINTHREG

AND/OR

Note

Which of NMI or Int0 is used for battint is selected by setting of NMIREG.

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