User`s guide

A.3 PCI Dense Memory Space

PCI dense memory space occupies physical addresses 86.0000.0000 through

86.FFFF.FFFF and is typically used for PCI data buffers (such as a video

frame buffer). Refer to Section 4.2.5 for additional information.

A.3.1 Flash ROM Memory Addresses

Table A–8 lists the address range for the ﬂash ROM. Refer to Section A.2.1.4

for details on selecting one of two ﬂash ROM segments.

Table A–8 Flash ROM Memory Addresses (Within Segment)

Offset Physical Address Capacity

0.0000–7.FFFF 86.FFF8.0000–86.FFFF.FFFF 512KB

A.3.2 Map of Flash ROM Memory

Table A–9 provides a map of ﬂash ROM memory.

Table A–9 Map of Flash ROM Memory

Offset Physical Address

Block

Number

Capacity

0.0000–0.FFFF 86.FFF8.0000–86.FFF8.FFFF 0,8 64KB

1.0000–1.FFFF 86.FFF9.0000–86.FFF9.FFFF 1,9 64KB

2.0000–2.FFFF 86.FFFA.0000–86.FFFA.FFFF 2,10 64KB

3.0000–3.FFFF 86.FFFB.0000–86.FFFB.FFFF 3,11 64KB

4.0000–4.FFFF 86.FFFC.0000–86.FFFC.FFFF 4,12 64KB

5.0000–5.FFFF 86.FFFD.0000–86.FFFD.FFFF 5,13 64KB

6.0000–6.FFFF 86.FFFE.0000–86.FFFE.FFFF 6,14 64KB

7.0000–7.FFFF 86.FFFF.0000–86.FFFF.FFFF 7,15 64KB

Dense space addresses. Byte accesses are not possible using this space. Use sparse space for ﬁner

granularity.

The block number is determined by the value in the ﬂash ROM segment select register (see

Section A.2.1.4).

I/O Space Address Maps A–13