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Philips Semiconductors
ARM-based Microcontroller
Vector Address Register (VICVectAddr - 0xFFFFF030, Read/Write)
When an IRQ interrupt occurs, the IRQ service routine can read this register and jump to the value read.
Table 52: Vector Address Register (VICVectAddr - 0xFFFFF030, Read/Write)
VICVectAddr
If any of the interrupt requests or software interrupts that are assigned to a vectored IRQ slot
is (are) enabled, classified as IRQ, and asserted, reading from this register returns the
address in the Vector Address Register for the highest-priority such slot (lowest-numbered)
31:0
such slot. Otherwise it returns the address in the Default Vector Address Register.
Writing to this register does not set the value for future reads from it. Rather, this register
should be written near the end of an ISR, to update the priority hardware.
Protection Enable Register (VICProtection - 0xFFFFF020, Read/Write)
This one-bit register controls access to the VIC registers by software running in User mode.
Table 53: Protection Enable Register (VICProtection - 0xFFFFF020, Read/Write)
VICProtection
1: the VIC registers can only be accessed in privileged mode.
0
0: VIC registers can be accessed in User or privileged mode.
Vectored Interrupt Controller (VIC)
LPC2119/2129/2194/2292/2294
Function
Function
102
Preliminary User Manual
Reset Value
0
Reset Value
0
May 03, 2004
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