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AXC003 Processor FPGA Overview
DesignWare ARC AXC003 CPU Card User Guide
Version 6323-018
Synopsys, Inc.
May 2017
I/O Coherency and PAE
slv = ddr / offset = 0
ARC HS38x2
(CBU + IOC + OBU)
slv = ddr /offset = 1
slv = ddr / offset = 2
slv = ddr / offset = 3
2GByte
DDR
0
PAE
register
1
1
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
slv = ioc / offset = 8
slv = ioc / offset = 9
slv = ioc / offset = 10
slv = ioc / offset = 11
slv = ioc / offset = 12
slv = ioc / offset = 13
0x0_8000_0000
Coherent
DMA client
slv = ioc / offset = 0
slv = ioc / offset = 1
slv = ioc / offset = 2
slv = ioc / offset = 3
slv = ioc / offset = 4
slv = ioc / offset = 5
slv = ioc / offset = 6
slv = ioc / offset = 7
slv = ioc / offset = 15
0x1_0000_0000
0x1_8000_0000
0x1_FFFF_FFFF
MSB of
physical address
ignored
by DMA client
0
slv = ioc / offset = 14
slv = ioc / offset = 15
Interrupts
GPIO interrupts are triggered with signals that are connected to GPIO Port A.
The Mainboard GPIO0 interrupt can be triggered with Pmod0, Pmod1, Pmod2,
Pmod3, Pmod4, Extension0, Extension1, Extension2, and Extension3.
The Mainboard GPIO1 interrupt can be triggered with Mainboard pushbutton [5:0].
See the ARC SDP Mainboard User Guide
for details about the Pmod extension options
and other extension options.
The interrupt architecture of the AXC003 CPU Card distinguishes between two interrupt
sources:
Internal interrupts from sources within the AXC003 Processor FPGA