Section 5 Interrupt Controller
Rev. 1.00 Mar. 12, 2008 Page 78 of 1178
REJ09B0403-0100
SYSCR
NMI input
IRQ input
Internal interrupt sources
SWDTEND to EINT
NMIEG
INTM1, INTM0
NMI input
IRQ input
ISR
ISCR
IER
ICR
Interrupt controller
Priority level
determination
Interrupt
request
Vector number
I, UI
CCR
CPU
ICR:
ISCR:
IER:
ISR:
SYSCR:
Interrupt control register
IRQ sense control register
IRQ enable register
IRQ status register
System control register
[Legend]
Figure 5.1 Block Diagram of Interrupt Controller
5.2 Input/Output
Pins
Table 5.1 summarizes the pins of the interrupt controller.
Table 5.1
Pin Configuration
Symbol I/O
Function
NMI
Input
Nonmaskable external interrupt
Rising edge or falling edge can be selected
IRQ15
to
IRQ0
ExIRQ15
to
ExIRQ0
Input Maskable
external
interrupts
Rising edge, falling edge, or both edges, or level sensing can be
selected individually for each pin. Pin of
IRQn
or
ExIRQn
to input
IRQn
(n = 15 to 0) interrupt can be selected.
Summary of Contents for H8S Family
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Page 70: ...Section 1 Overview Rev 1 00 Mar 12 2008 Page 22 of 1178 REJ09B0403 0100...
Page 108: ...Section 2 CPU Rev 1 00 Mar 12 2008 Page 60 of 1178 REJ09B0403 0100...
Page 116: ...Section 3 MCU Operating Modes Rev 1 00 Mar 12 2008 Page 68 of 1178 REJ09B0403 0100...
Page 152: ...Section 5 Interrupt Controller Rev 1 00 Mar 12 2008 Page 104 of 1178 REJ09B0403 0100...
Page 206: ...Section 6 Bus Controller BSC Rev 1 00 Mar 12 2008 Page 158 of 1178 REJ09B0403 0100...
Page 420: ...Section 9 14 Bit PWM Timer PWMX Rev 1 00 Mar 12 2008 Page 372 of 1178 REJ09B0403 0100...
Page 476: ...Section 12 Watchdog Timer WDT Rev 1 00 Mar 12 2008 Page 428 of 1178 REJ09B0403 0100...
Page 552: ...Section 14 CRC Operation Circuit CRC Rev 1 00 Mar 12 2008 Page 504 of 1178 REJ09B0403 0100...
Page 712: ...Section 18 I2 C Bus Interface IIC Rev 1 00 Mar 12 2008 Page 664 of 1178 REJ09B0403 0100...
Page 804: ...Section 19 LPC Interface LPC Rev 1 00 Mar 12 2008 Page 756 of 1178 REJ09B0403 0100...
Page 838: ...Section 20 Ethernet Controller EtherC Rev 1 00 Mar 12 2008 Page 790 of 1178 REJ09B0403 0100...
Page 964: ...Section 24 RAM Rev 1 00 Mar 12 2008 Page 916 of 1178 REJ09B0403 0100...
Page 1066: ...Section 25 Flash Memory Rev 1 00 Mar 12 2008 Page 1018 of 1178 REJ09B0403 0100...
Page 1098: ...Section 26 Boundary Scan JTAG Rev 1 00 Mar 12 2008 Page 1050 of 1178 REJ09B0403 0100...
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