Information
Table 4-1. System memory map (continued)
System 32-bit Address Range Destination Slave Access
0x4000_0000–0x4007_FFFF Bitband region for peripheral bridge 0 (AIPS-Lite0) Cortex-M4 core &
DMA/EzPort
0x4008_0000–0x400F_EFFF Bitband region for peripheral bridge 1 (AIPS-Lite1) Cortex-M4 core &
DMA/EzPort
0x400F_F000–0x400F_FFFF Bitband region for general purpose input/output (GPIO) Cortex-M4 core &
DMA/EzPort
0x4010_0000–0x41FF_FFFF Reserved –
0x4200_0000–0x43FF_FFFF Aliased to peripheral bridge (AIPS-Lite) and general purpose
input/output (GPIO) bitband
Cortex-M4 core
only
0x4400_0000–0x5FFF_FFFF Reserved –
0x6000_0000–0x7FFF_FFFF FlexBus (External Memory - Write-back) All masters
0x8000_0000–0x9FFF_FFFF FlexBus (External Memory - Write-through) All masters
0xA000_0000–0xDFFF_FFFF FlexBus (External Peripheral - Not executable) All masters
0xE000_0000–0xE00F_FFFF Private peripherals Cortex-M4 core
only
0xE010_0000–0xFFFF_FFFF Reserved –
NOTE
1. EzPort master port is statically muxed with DMA master
port. Access rights to AIPS-Lite peripheral bridges and
general purpose input/output (GPIO) module address space
is limited to the core, DMA, and EzPort.
2. ARM Cortex-M4 core access privileges also includes
accesses via the debug interface.
4.2.1 Aliased bit-band regions
The SRAM_U, AIPS-Lite, and general purpose input/output (GPIO) module resources
reside in the Cortex-M4 processor bit-band regions.
The processor also includes two 32 MB aliased bit-band regions associated with the two
1 MB bit-band spaces. Each 32-bit location in the 32 MB space maps to an individual bit
in the bit-band region. A 32-bit write in the alias region has the same effect as a read-
modify-write operation on the targeted bit in the bit-band region.
Bit 0 of the value written to the alias region determines what value is written to the target
bit:
• Writing a value with bit 0 set writes a 1 to the target bit.
• Writing a value with bit 0 clear writes a 0 to the target bit.
System memory map
K10 Sub-Family Reference Manual, Rev. 6, Nov 2011
150 Freescale Semiconductor, Inc.