AMBA Design Kit Technical Reference Manual - ARM Information ...

AHB ComponentsBits Name FunctionSoftware Interrupt RegisterThe ICSOFTINT register is read/write. It generates software interrupts. Table 3-22 liststhe register bit assignments.Table 3-22 ICSOFTINT Register bit assignments[31:0] SoftInt Setting a bit generates a software interrupt for the specific source interrupt before interrupt masking.A HIGH bit sets the corresponding bit in the ICSoftInt register. A LOW bit has no effect.Bits Name FunctionSoftware Interrupt Clear RegisterThe ICSOFTINTCLEAR register is write-only. It clears bits in the ICSoftInt register.Table 3-23 lists the register bit assignments.Table 3-23 ICSOFTINTCLEAR Register bit assignments[31:0] SoftIntClear Clears bits in the ICSoftInt register.A HIGH bit clears the corresponding bit in the ICSoftInt register. A LOW bit has no effect.Protection Enable RegisterThe ICPROTECTION register is read/write. It enables or disables protected registeraccess. Figure 3-34 shows the register bit assignments.31 0UndefinedProtectionFigure 3-34 ICPROTECTION Register bit assignments3-74 Copyright © 2003, 2007 ARM Limited. All rights reserved. ARM DDI 0243C