MPC564EVB Freescale Semiconductor, MPC564EVB Datasheet - Page 388

• Manufacturer Part Number: MPC564EVB
• Description: KIT EVAL FOR MPC561/562/563/564
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC564EVB

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC56x
• Data Bus Width: 32 bit
• Interface Type: RS-232, Ethernet
• For Use With/related Products: MPC561, 562, 563, 564
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

External Bus Interface
If a burst access is acknowledged on its first beat with a normal TA but with the BI signal asserted, the
following single-beat transfers initiated by the MPC561/MPC563 to complete the 16-byte transfer
recognizes the RETRY signal assertion as a transfer error acknowledge.
In the case in which a small port size causes the MPC561/MPC563 to break a bus transaction into several
small transactions, terminating any transaction with RETRY causes a transfer error acknowledge. See
Section 9.5.2.3, “Single Beat Flow with Small Port
9-48
CLKOUT
BR
BG (output)
BB
ADDR[8:31]
RD/WR
TSIZ[0:1]
BURST
TS
Data
TA
RETRY
BI
ADDR
MPC561/MPC563 Reference Manual, Rev. 1.2
O
Figure 9-34. Retry on Burst Cycle
Cause Transfer Error
If Asserted Will
Allow External Master
to Gain the Bus
Size.”
ADDR
Freescale Semiconductor