MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 341

• 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
When the MPC555 / MPC556 initiates a burst access, the bus interface recognizes the
RETRY assertion as a retry termination only if it detects it before the first data beat was
acknowledged by the slave device. When the RETRY signal is asserted as a termina-
tion signal on any data beat of the access after the first (being the first data beat ac-
knowledged by a normal TA assertion), the MPC555 / MPC556 recognizes RETRY as
a transfer error acknowledge.
CLKOUT
BR (output)
BG
BB
ADDR[0:31]
RD/WR
TSIZ[0:1]
BURST
TS
Data
TA
RETRY (input)
/
MPC556
Figure 9-32 Retry Transfer Timing–External Arbiter
ADDR
EXTERNAL BUS INTERFACE
O
Rev. 15 October 2000
Master to Gain the Bus
Allow External
ADDR
MOTOROLA
9-45