DE1-SoC ARM Address Map

Device Map for ARM on the DE1-SoC Computer

There are links to two sets of documentation. Those on the DESL website tend to be longer and more easily understandable, with examples. Altera's documentation is more concise and more complete, including devices that are rarely used.

DE1-SoC Computer System with ARM

Instruction set and description for the ARM processor

Device	Adress range	IRQ	NIOS Doc	Altera Manual
64 KB on chip memory	FFFF0000 - FFFFFFFF			2.2
1 GB DDR3 SDRAM	00000000 - 3FFFFFFF			2.2
64 MB SDRAM	C0000000 - C3FFFFFF			2.5.3
256 KB FPGA on chip memory Pixel Buffer	C8000000 - C803FFFF		DESL	2.5.4
8 KB FPGA on chip memory Character Buffer	C9000000 - C9001FFF		DESL	2.5.5
LEDs (red)	FF200000 - FF20000F		DESL	2.5.7
Seven-segment display HEX3-HEX0	FF200020 - FF20002F		DESL	2.5.8
Seven-segment display HEX5-HEX4	FF200030 - FF20003F		DESL	2.5.8
Slider switches	FF200040 - FF20004F		DESL	2.5.9
Push buttons	FF200050 - FF20005F	73		2.5.10
JP1 Expansion header	FF200060 - FF20006F	83		2.5.11
JP2 Expansion header	FF200070 - FF20007F	84		2.5.11
PS/2 Port	FF200100 - FF200107	79	DESL	4.5
PS/2 Port Dual	FF200108 - FF20010F	89	DESL	4.5.1
JTAG UART	FF201000 - FF201007	80	DESL	2.5.13
second JTAG UART	FF201008 - FF20100F			2.5.15
IrDA Infrared serial port	FF201020 - FF201027	81		4.6
Interval Timer (100 Mhz)	FF202000 - FF20201F	72	DESL	2.5.16
Second Interval Timer	FF202020 - FF20202F	74	DESL	2.5.16
Audio/video Conguration	FF203000 - FF20301F			4.4
VGA Pixel buffer DMA control	FF203020 - FF20302F		DESL	4.2.1
VGA Character buffer DMA control	FF203030 - FF203037			4.2.3
Audio In/Out CODEC	FF203040 - FF20304F	78		4.1
Video input DMA control	FF203060 - FF20306F		DESL	4.2
Video input Edge detection	FF203070 - FF20307F		DESL	4.2
ADC (JP15)	FF204000 - FF20401F			4.7
HPS GPIO1	FF709000- FF709063	197		2.4.2
HPS I2C0	FFC04000- FFC040FC			2.4.2
HPS Timer0	FFC08000- FFC08013	199		2.4.2
HPS Timer1	FFC09000- FF709013	200		2.4.2
HPS Timer2	FFD00000- FFD00013	201		2.4.2
HPS Timer3	FFD01000- FFD01013	202		2.4.2
FPGA Bridge	FFD0501C- FFD0501F			2.4.5
GIC CPU Interface	FFFEC100- FFFEDFFC
GIC Distribution Interface	FFFED000- FFFEDFFC
ARM A9 Private Timer	FFFFEC600- FFFEC60F	29	DESL	2.4.1