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DesignWare ARC AXC003 CPU Card User Guide
AXI Tunnel Address Decoder Registers
Synopsys, Inc.
Version 6323-018
May 2017
23:20
SLV_OFFSET5
RW
5*
Address offset for address aperture[5]
1)
27:24
SLV_OFFSET6
RW
6*
Address offset for address aperture[6]
1)
31:28
SLV_OFFSET7
RW
7*
Address offset for address aperture[7]
1)
1) Same encoding as SLV_OFFSET0
TUN_A_OFFSET1: AXI Tunnel Address Offset Register 1
Address offset:
0x100C
Reset value:
0x7654_3210 ARC core without I/O Coherency port
0xFEDC_BA98 ARC core with I/O Coherency port
Table 4
TUN_A_OFFSET1 Register
Legend: * reset value
Bit
Name
Access Value
Description
3:0
SLV_OFFSET8
RW
0 / 8*
Address offset for address aperture[8]
0
0*256MB
1
1*256MB
…
…
15
15*256MB
7:4
SLV_OFFSET9
RW
1 / 9*
Address offset for address aperture[9]
1)
11:8
SLV_OFFSET10
RW
2 / 10*
Address offset for address aperture[10]
1)
15:12
SLV_OFFSET11
RW
3 / 11*
Address offset for address aperture[11]
1)
19:16
SLV_OFFSET12
RW
4 / 12*
Address offset for address aperture[12]
1)
23:20
SLV_OFFSET13
RW
5 / 13*
Address offset for address aperture[13]
1)
27:24
SLV_OFFSET14
RW
6 / 14*
Address offset for address aperture[14]
1)
31:28
SLV_OFFSET15
RW
7 / 15*
Address offset for address aperture[15]
1)
1) Same encoding as OFFSET8
TUN_A_UPDATE: AXI Tunnel Update Register
Address offset:
0x1014
Reset value:
0x0000_0000
Table 5
TUN_A_UPDATE Register
Legend: * reset value
Bit
Name
Access Value Description
0
UPDATE
RW1C
0*
All the address aperture configuration registers (i.e. *_A_SLV) are
double-buffered. The newly programmed values will be only be
forwarde
d to the address decoder after writing a ‘1’ to this bit.