COBHAM GR740 User Manual

GR740-UM-DS, Nov 2017, Version 1.7 19 www.cobham.com/gaisler
GR740
2.3 Memory map
The memory map of the internal AHB and APB buses as seen from the processor cores can be seen
below. Software does not need to be aware that a bridge is positioned between the processor and a
peripheral since the address mapping between buses is one-to-one.
Table 7. AMBA memory map, as seen from processors
Component Address range Area Bus
L2CACHE 0x00000000 - 0x7FFFFFFF L2 cache memory area. Covers
SDRAM memory area.
Processor
GRPCI2 0x80000000 - 0xBFFFFFFF PCI memory area Slave I/O
FTMCTRL 0xC0000000 - 0xCFFFFFFF
0xD0000000 - 0xDFFFFFFF
PROM area
Memory mapped I/O area
Slave I/O
0xE0000000 - 0xEFFFFFFF Unused. This memory range is occu-
pied on the Debug AHB bus and is
not visible from the processors. A
separate table below shows the map-
ping.
Processor
L2CACHE 0xF0000000 - 0xF03FFFFF L2 cache configuration registers Processor
0xF0400000 - 0xFF7FFFFF Unused Processor
GRPCI2 0xFF800000 - 0xFF83FFFF PCI I/O area Slave I/O
GRIOMMU 0xFF840000 - 0xFF847FFF IOMMU configuration registers Slave I/O
0xFF848000 - 0xFF87FFFF Unused Slave I/O
GRSPWROUTER 0xFF880000 - 0xFF881FFF SpaceWire router configuration port
Note: Silicon revision 0 maps the
area 0xFF880000 - 0xFF880FFF.
See section 43.2.23.
Slave I/O
0xFF882000 - 0xFF8FEFFF Unused Slave I/O
0xFF8FF000 - 0xFF8FFFFF Slave I/O bus plug&play area Slave I/O
APBBRIDGE0 0xFF900000 - 0xFF9FFFFF APB bridge 0 Processor
A
P
B
B
R
I
D
G
E
0
APBUART0 0xFF900000 - 0xFF9000FF UART 0 registers Processor
APBUART1 0xFF901000 - 0xFF9010FF UART 1 registers Processor
GRGPIO0 0xFF902000 - 0xFF9020FF General purpose I/O port registers Processor
FTMCTRL 0xFF903000 - 0xFF9030FF PROM/IO controller registers Processor
IRQ(A)MP 0xFF904000 - 0xFF907FFF Interrupt controller registers Processor
GPTIMER0 0xFF908000 - 0xFF9080FF Timer unit 0 registers Processor
GPTIMER1 0xFF909000 - 0xFF9090FF Timer unit 1 registers Processor
GPTIMER2 0xFF90A000 - 0xFF90A0FF Timer unit 2 registers Processor
GPTIMER3 0xFF90B000 - 0xFF90B0FF Timer unit 3 registers Processor
GPTIMER4 0xFF90C000 - 0xFF90C0FF Timer unit 4 registers Processor
GRSPWROUTER 0xFF90D000 - 0xFF90DFFF SpaceWire router AMBA interface 0 Processor
GRSPWROUTER 0xFF90E000 - 0xFF90EFFF SpaceWire router AMBA interface 1 Processor
GRSPWROUTER 0xFF90F000 - 0xFF90FFFF SpaceWire router AMBA interface 2 Processor
GRSPWROUTER 0xFF910000 - 0xFF910FFF SpaceWire router AMBA interface 3 Processor
GRETH_GBIT0 0xFF940000 - 0xFF9400FF Gigabit Ethernet MAC 0 registers Processor
GRETH_GBIT1 0xFF980000 - 0xFF9800FF Gigabit Ethernet MAC 1 registers Processor
APBBRIDGE0 0xFF990000 - 0xFF9FFEFF Unused Processor
APBBRIDGE0 0xFF9FF000 - 0xFF9FFFFF APB bus 0 plug&play area Processor
APBBRIDGE1 0xFFA00000 - 0xFFAFFFFF APB bridge 1 Processor

COBHAM GR740 Specifications

General

Brand	COBHAM
Model	GR740
Category	Computer Hardware
Language	English