External Interrupt Controller (Exirc); Outline; Feature - Fujitsu MB86R02 Jade-D Hardware Manual

MB86R02 'Jade-D' Hardware Manual V1.64

10 External Interrupt Controller (EXIRC)

This chapter describes function and operation of external interrupt controller (EXIRC).

10.1 Outline

EXIRC is block to control external interrupt as well as external interrupt request input to external
pin of INT_A[3] ~ INT_A [0]. "H" level, "L" level, rising edge, and falling edge are selectable as
detected input request level.

10.2 Feature

EXIRC has following features:
• Operating as bus slave of AMBA (APB)
• 4 channels of external interrupt control
• 4 input request level selections
• "H" level
• "L" level
• Rising edge
• Falling edge
• Utilization of external interrupt as returning factor from Stop mode
10-1