MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 342

• 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
If a burst access is acknowledged on its first beat with a normal TA but with the BI sig-
nal asserted, the following single-beat transfers initiated by the MPC555 / MPC556 to
complete the 16-byte transfer recognizes the RETRY signal assertion as a transfer er-
ror acknowledge.
In the case in which a small port size causes the MPC555 / MPC556 to break a bus
transaction into several small transactions, terminating any transaction with RETRY
CLKOUT
BR
BG (output)
BB
ADDR[0:31]
RD/WR
TSIZ[0:1]
BURST
TS
Data
TA
RETRY
BI
/
MPC556
ADDR
Figure 9-33 Retry On Burst Cycle
O
EXTERNAL BUS INTERFACE
Cause Transfer Error
Rev. 15 October 2000
If Asserted Will
Allow External Master
to Gain the Bus
ADDR
MOTOROLA
9-46