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Fast Models Reference Manual - ARM Information Center

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Versatile Express Model: Platform and Components<br />

6.5.4 Registers<br />

Table 6-12 provides a description of the configuration registers for the VE_SysRegs<br />

component.<br />

Table 6-12 VE_SysRegs registers<br />

Register name Offset Access Description<br />

SYS_ID 0x00 read only system identity<br />

SYS_SW 0x04 read only bits[7:0] map to switch S6<br />

SYS_LED 0x08 read/write bits[7:0] map to user LEDs<br />

SYS_OSC0 0x0C read/write settings for the ICS307<br />

OSC0<br />

SYS_OSC1 0x10 read/write settings for the ICS307<br />

OSC1<br />

SYS_OSC2 0x14 read/write settings for the ICS307<br />

OSC2<br />

SYS_OSC3 0x18 read/write settings for the ICS307<br />

OSC3<br />

SYS_OSC4 0x1C read/write settings for the ICS307<br />

OSC4<br />

SYS_LOCK 0x20 read/write write 0xA05F to unlock<br />

SYS_100HZ 0x24 read only 100Hz counter<br />

SYS_CONFIGDATA1 0x28 - reserved for configuring<br />

clock domain<br />

SYS_CONFIGDATA2 0x2C - reserved for configuring<br />

clock domain<br />

SYS_FLAGS 0x30 read only general purpose flags<br />

SYS_FLAGSCLR 0x34 write only clear bits in general purpose<br />

flags<br />

SYS_NVFLAGS 0x38 read only general purpose non-volatile<br />

flags<br />

SYS_NVFLAGSCLR 0x3C write only clear bits in general purpose<br />

non-volatile flags<br />

SYS_PCICTL 0x44 read/write PCI control<br />

SYS_MCI 0x48 read only MCI<br />

SYS_FLASH 0x4C read/write flash control<br />

SYS_CLCD 0x50 read/write controls LCD power and<br />

multiplexing<br />

SYS_CLCDSER 0x54 read/write LCD control<br />

SYS_BOOTCS 0x58 read only boot select switch<br />

SYS_24MHZ 0x5C read only 24MHz counter<br />

<strong>ARM</strong> DUI 0423J Copyright © 2008-2011 <strong>ARM</strong>. All rights reserved. 6-15<br />

ID051811<br />

Non-Confidential

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