Samsung AlphaPC 164UX Technical Reference Manual page 69

Table A–2 Physical Address Map (Byte/Word Mode Enabled)
21164 Address
87.6000.0000 – 87.6FFF.FFFF
87.7000.0000 – 87.7FFF.FFFF
87.8000.0000 – 87.8FFF.FFFF
87.9000.0000 – 87.9FFF.FFFF
87.A000.0000 – 87.AFFF.FFFF
87.B000.0000 – 87.BFFF.FFFF
88.0000.0000 – 88.FFFF.FFFF
98.0000.0000 – 98.FFFF.FFFF
A8.0000.0000 – A8.FFFF.FFFF
B8.0000.0000 – B8.FFFF.FFFF
89.0000.0000 – 89.FFFF.FFFF
99.0000.0000 – 99.FFFF.FFFF
A9.0000.0000 – A9.FFFF.FFFF
B9.0000.0000 – B9.FFFF.FFFF
8A.0000.0000 – 8A.FFFF.FFFF
9A.0000.0000 – 9A.FFFF.FFFF
AA.0000.0000 – AA.FFFF.FFFF
BA.0000.0000 – BA.FFFF.FFFF
8B.0000.0000 – 8B.FFFF.FFFF
9B.0000.0000 – 9B.FFFF.FFFF
AB.0000.0000 – AB.FFFF.FFFF
BB.0000.0000 – BB.FFFF.FFFF
C7.C000.0000 – C7.FFFF.FFFF
1
Address bits 37 and 38 are generated by the 21164 and not by software. These address bits are
used by the 21164 to indicate to external hardware that this transaction is a byte, word, longword,
or quadword operation.
2
Read/write transactions to flash ROM must be done with byte transactions to address range
87.C000.0000 through 87.FFFF.FFFF. All other transaction types will produce UNDEFINED
results.
Size (GB) Selection
0.25 21174 PCI address translation
0.25 Reserved
0.25 21174 miscellaneous CSRs
0.25 21174 power management CSRs
0.25 21174 interrupt control CSRs
0.25 Reserved
4.00 PCI memory space INT8
1
4.00 PCI memory space INT4
1
4.00 PCI memory space INT2
1
4.00 PCI memory space INT1
4.00 PCI I/O space INT8
1
4.00 PCI I/O space INT4
1
4.00 PCI I/O space INT2
1
4.00 PCI I/O space INT1
4.00 PCI configuration space, type 0, INT8
1
4.00 PCI configuration space, type 0, INT4
1
4.00 PCI configuration space, type 0, INT2
1
4.00 PCI configuration space, type 0, INT1
4.00 PCI configuration space, type 1, INT8
1
4.00 PCI configuration space, type 1, INT4
1
4.00 PCI configuration space, type 1, INT2
1
4.00 PCI configuration space, type 1, INT1
2
1.00 Flash ROM read/write space
Address Map
(Sheet 2 of 2)
System Address Space
A–3