ARM ARM DUI 0224I Computer Hardware User Manual


 
Programmer’s Reference
ARM DUI 0224F Copyright © 2003-2007 ARM Limited. All rights reserved. 4-19
SYS_FLAGS
0x10000030
Read only 6 General-purpose flags (reset by any reset). See Flag
registers, SYS_FLAGx and SYS_NVFLAGx on
page 4-30.
SYS_FLAGSSET
0x10000030
Write 6 Set bits in general-purpose flags.
SYS_FLAGSCLR
0x10000034
Write 6 Clear bits in general-purpose flags.
SYS_NVFLAGS
0x10000038
Read only 0 General-purpose nonvolatile flags (reset only on
power up).
SYS_NVFLAGSSET
0x10000038
Write 0 Set bits in general-purpose nonvolatile flags.
SYS_NVFLAGSCLR
0x1000003C
Write 0 Clear bits in general-purpose nonvolatile flags.
SYS_RESETCTL
0x10000040
Read/Write
Lockable
0 The reset control register sets reset depth and
programmable soft reset.
SYS_PCICTL
0x10000044
Read only - Read returns a HIGH in bit [0] if a PCI board is
present in the expansion backplane.
SYS_MCI
0x10000048
Read only - Contains the “card present” and “write enabled”
status for the MMCI0 and MMCI1 cards
SYS_FLASH
0x1000004C
Read/Write 6 Controls write protection of flash devices.
SYS_CLCD
0x10000050
Read/Write 6 Controls LCD power and multiplexing.
SYS_CLCDSER
0x10000054
Read/Write 6 Control interface to activate the 2.2 inch display on
the LCD adaptor.
SYS_BOOTCS
0x10000058
Read only - Contains the settings of the boot switch S1.
SYS_24MHz
0x1000005C
Read only 6 32-bit counter clocked at 24MHz.
SYS_MISC
0x10000060
Read only 6 See Miscellaneous System Control Register,
SYS_MISC on page 4-36 for details.
SYS_DMAPSR0
0x10000064
Read/Write 6 Selection control for remapping DMA from external
peripherals to DMA channel 0.
SYS_DMAPSR1
0x10000068
Read/Write 6 Selection control for remapping DMA from external
peripherals to DMA channel 1.
SYS_DMAPSR2
0x1000006C
Read/Write 6 Selection control for remapping DMA from external
peripherals to DMA channel 1.
Table 4-4 Register map for system control registers (continued)
Name Address
Access
a
Reset
level
Description