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Altera RapidIO MegaCore Function User Manual

Page 91

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Chapter 4: Functional Description

4–45

Logical Layer Modules

August 2014

Altera Corporation

RapidIO MegaCore Function

User Guide

Figure 4–22

shows the I/O slave Logical window translation process.

Figure 4–22. Input/Output Slave Window Translation

Note to

Figure 4–22

:

(1) These bits must have the same value in the initial Avalon-MM address and in the window base.

Base

Window

Offset

0x000000000

0x3FFFFFFF8

RapidIO

Address Space

0x00000000

0xFFFFFFF8

Avalon-MM

Address Space

{Initial Avalon-MM

Address, Nb’0}

Don’t Care

Don’t Care

33

Window Base

Window Mask

Window Offset

Resulting

RapidIO Address

0

2

3

0

2

3

31

31

XAMO

(1)

(1)

Window Size

11111111.........................11 000000000000000..............00