ARM ARM DUI 0224I manual HIGH, then expansion memory is aliased to

				Programmer’s Reference
				Table 4-9 Configuration register 2 (continued)
Bits	Power-on	Description
	reset state
[6]	b1	CFGBRIDGEMEMMAP, AMBA bridge mapping. Reserved. Must be set to 1.
[5]	b0	CFGREMAPDYEXEN, dynamic memory and expansion memory alias enable (see
		Remapping of boot memory on page 4-9). When HIGH and CFGREMAPSTEXEN is LOW,
		then dynamic memory is aliased to 0x00000000. When HIGH and CFGREMAPSTEXEN is
		HIGH, then expansion memory is aliased to 0x00000000.
			Note
		This bit is read-only. To remap to AHB expansion memory both BOOTCSSEL[1] and
		BOOTCSSEL[0] must be HIGH. The combination of CFGREMAPSTENEX LOW and
		CFGREMAPDYEXEN LOW is not supported.
[4]	b1	CFGREMAPSTEXEN, static memory and expansion memory alias enable (see Remapping
		of boot memory on page 4-9). When HIGH and CFGREMAPDYEXEN is LOW, then static
		memory is aliased to 0x00000000. When HIGH and CFGREMAPDYEXEN is HIGH, then
		expansion memory is aliased to 0x00000000.
			Note
		The combination of CFGREMAPSTENEX LOW and CFGREMAPDYEXEN LOW is not
		supported.
[3]	b0	CFGMPMCnSMC, memory controller select. If this signal is HIGH, the static memory
		controller is disabled. Reserved. Must be set to 0.
[2]	b1	CFGVFPENABLE, coprocessor multiplexor signal for VFP9-S. Coprocessor enable (active
		HIGH).
[1]	b0	BIGENDINIT, ARM926EJ-S processor endian control. Defines the byte endian mode at
		reset. When LOW, little endianness is used. When HIGH, big endianness is used.
[0]	b0	VINITHI, ARM926EJ-S processor exception location. Determines the reset location of the
		exception vectors for the ARM926EJ-S.When LOW, the vectors are located at 0x0000000.
		When HIGH, the vectors are located at 0xFFFF0000.

A convention for ARM cores is to map the exception vectors to begin at address 0. However, the ARM926EJ-S PXP Development Chip enables the vectors to be moved to 0xFFFF0000 by setting the V bit in coprocessor 15 register 1. To maintain compatibility across all cores, the default reset value maps the vector to begin at address 0 (see also the ARM926EJ-S Development Chip Reference Manual).

ARM DUI 0224I Copyright © 2003-2010 ARM Limited. All rights reserved. 4-29