NXP Semiconductors MPC5566 - Introduction

MPC5566 Microcontroller Reference Manual, Rev. 2
Freescale Semiconductor 12-1
Chapter 12
External Bus Interface (EBI)
12.1 Introduction
This chapter describes the external bus interface (EBI), which handles the transfer of information between
the internal buses and the memories or peripherals in the external address space and enables an external
master to access internal address space. For an overview of how the EBI used in the MPC5500 differs from
the EBI used in MPC500 devices, see Section 12.5.5, “Summary of Differences from MPC5xx.”
12.1.1 Block Diagram
Figure 12-1 is a block diagram of the EBI. The signals shown are external pins to the MCU.
NOTE
See the Signal Description table in the Signals chapter, as not all signals are
implemented in all device packages. See the last two columns in the table
for a list of available signals on the 416 package and the VertiCal assembly.
The VertiCal assembly has ball connections for all the available signals on
the device.