MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 353

• Manufacturer Part Number: MPC555CME
• Description: KIT EVALUATION FOR MPC555
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC555CME

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC555
• Data Bus Width: 32 bit
• Interface Type: RS-232
• For Use With/related Products: MPC555
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

10.1 Overview
MPC555 / MPC556
USER’S MANUAL
The memory controller generates interface signals to support a glueless interface to
external memory and peripheral devices. It supports four regions, each with its own
programmed attributes. The four regions are reflected on four chip-select pins. Read
and write strobes are also provided.
The memory controller operates in parallel with the external bus interface to support
external cycles. When an access to one of the memory regions is initiated, the memory
controller takes ownership of the external signals and controls the access until its ter-
mination. Refer to
The memory controller provides a glueless interface to EPROM, static RAM (SRAM),
Flash EPROM (FEPROM), and other peripherals. The general-purpose chip-selects
are available on lines CS[0] through CS[3]. CS[0] also functions as the global (boot)
Internal Bus
Figure 10-1 Memory Controller Function Within the USIU
Interface
U-bus
Figure
MEMORY CONTROLLER
10-1.
Memory Controller
MEMORY CONTROLLER
Rev. 15 October 2000
EBI Bus
SECTION 10
Bus
Controller
Interface
External
Memory
Bus
ADDR[0:31]
DATA[0:31]
Control Bus
WE[0:3]/BE[0:3]
OE
CS[0:3]
MOTOROLA
10-1