Intel manual Redboot* Intel IQ80219 Memory Map, Physical Address Range Description

Intel® IQ80219 General Purpose PCI Processor Evaluation Platform

Software Reference

5.4.2Redboot* Intel® IQ80219 Memory Map

The virtual memory maps use a C, B, and X column to indicate the caching policy for the region.

X	C	B	Description
0	0	0	Un-cached/Un-buffered
0	0	1	Un-cached/Buffered
0	1	0	Cached/Buffered Write Through, Read Allocate
0	1	1	Cached/Buffered Write Back, Read Allocate
1	0	0	Invalid -- not used
1	0	1	Un-cached/Buffered No write buffer coalescing
1	1	0	Mini D-Cache - Policy set by Auxiliary Control Register
1	1	1	Cached/Buffered Write Back, Read/Write Allocate

Physical Address Range		Description
0x0000 0000 - 0x7FFF FFFF		ATU Outbound Direct Window
0x8000 0000 - 0x900F FFFF		ATU Outbound Translate Windows
0xa000 0000 - 0xBFFF FFFF		SDRAM
0xf000 0000 - 0xF080 0000		FLASH (PBIUa CS0b)
0xfe80 0000 - 0xFE80 0FFF		UART (PBIU CS1)
0xfe84 0000	- 0xFE84 0FFF	Left 7-segment LED (PBIU CS3)
0xfe85 0000	- 0xFE85 0FFF	Right 7-segment LED (PBIU CS2)
0xfe8d 0000	- 0xFE8D 0FFF	Rotary Switch (PBIU CS4)
0xfe8f 0000 - 0xFE8F 0FFF		Battery Status (PBIU CS5)
0xfff0 0000 - 0xFFFF FFFF		80219 Memory Mapped Registers

a.PBIU: 80219 Peripheral Bus Interface Unit.

b.CS: Chip-Select for the PBIU on the 80219.

Default Virtual Map	X	C	B	Description
0x00000000 - 0x1fffffff	1	1	1	SDRAM
0x20000000 - 0x9fffffff	0	0	0	Outbound Direct Window
0xa0000000 - 0xb00fffff	0	0	0	Outbound Translate Windows
0xc0000000 - 0xdfffffff	0	0	0	Un-cached alias for SDRAM
0xe0000000 - 0xe00fffff	1	1	1	Cache flush region (no phys memory)
0xf0000000 - 0xf0800000	0	1	0	Flash (PBIU CS0)
0xfe800000 - 0xfe800fff	0	0	0	UART (PBIU CS1)
0xfe840000 - 0xfe840fff	0	0	0	Left 7-segment LED (PBIU CS3)
0xfe850000 - 0xfe850fff	0	0	0	Right 7-segment LED (PBIU CS2)
0xfe8d0000 - 0xfe8d0fff	0	0	0	Rotary Switch (PBIU CS4)
0xfe8f0000 - 0xfe8f0fff	0	0	0	Battery Status (PBIU CS5)
0xfff00000 - 0xffffffff	0	0	0	80219 Memory Mapped Registers

78 Board Manual