Samsung S3C6400X User Manual page 334

S3C6400X RISC MICROPROCESSOR
Software Interrupt Clear Register, VICSOFTINTCLEAR
Bits Name
[31:0] SoftIntClear
Protection Enable Register, VICPROTECTION
Bits Name
[31:1] Reserved
[0] Protection
Read:
0 = software interrupt inactive (reset)
1 = software interrupt active
Write:
0 = no effect
1 = software interrupt enabled
There is one bit of the register for each interrupt source.
Type Function
Clears corresponding bits in the VICSOFTINT Register:
W
0 = no effect
1 = software interrupt disabled in the VICSOFTINT
Register.
There is one bit of the register for each interrupt source.
Type Function
Reserved, read as zero, do not modify.
-
Enables or disables protected register access:
RW
0 = protection mode disabled (reset)
1 = protection mode enabled.
When enabled, only privileged mode accesses (reads and
wirtes) can access the interrupt controller registers, that is,
when HPROT[1] is set HIGH for the current transfer.
When disabled, both user mode and privileged mode can
access the registers.
This register can only be accessed in privileged mode,
even when protection mode is disabled.
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
VECTORED INTERRUPT CONTROLLER
12-11