MPC5553/MPC5554 Microcontroller Reference Manual, Rev. 5
Freescale Semiconductor
7-1
Chapter 7
Crossbar Switch (XBAR)
7.1
Introduction
This chapter describes the multi-port crossbar switch (XBAR), which supports simultaneous connections
between four (three for MPC5554) master ports and five slave ports. XBAR supports a 32-bit address bus
width and a 64-bit data bus width at all master and slave ports.
7.1.1
Block Diagram
shows a block diagram of the crossbar switch.
gives the crossbar switch port for each
master and slave, and the assigned and fixed ID number for each master.
Figure 7-1. XBAR Block Diagram
Table 7-1. XBAR Switch Ports
Module
XBAR Port
Master ID
e200z6 core—CPU instruction/data
Master 0
0
e200z6—Nexus
1
eDMA
Master 1
2
External Bus Interface
Master 2
3
FEC (MPC5553 only)
Master 3
4
e200z6 Core
eDMA
EBI
Flash
EBI
(32-bit)
Internal SRAM
Peripheral
Bridge A (32-bit)
Peripheral
Bridge B (32-bit)
(64-bit)
(32-bit)
(64-bit)
(64-bit)
(in MPC5553 only)
(64-bit)
FEC
Summary of Contents for MPC5553
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