MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 364

• 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

MPC555
USER’S MANUAL
Figure 10-10
ing. In
• Because TRLX is set, assertion of the CS and WE strobes is delayed by one clock
• CS assertion is delayed an additional one quarter clock cycle because ACS = 10.
• The total cycle length = three clock cycles, determined as follows:
/
cycle.
— The basic memory cycle requires two clock cycles.
— An extra clock cycle is required due to the effect of TRLX on the strobes.
MPC556
Figure
Address
CLOCK
RD/WR
WE/BE
Data
OE
CS
TS
TA
through
10-10, note the following points:
Figure 10-10 Relaxed Timing–Write Access
(ACS = 10, SCY = 0, CSNT = 0, TRLX = 1)
Figure 10-12
MEMORY CONTROLLER
Rev. 15 October 2000
are examples of write accesses using relaxed tim-
ACS = 10
MOTOROLA
10-12