MPC564EVB Freescale Semiconductor, MPC564EVB Datasheet - Page 1025

• 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

24.9.8
24.9.8.1
24.9.8.2
The data (read or write) trace message is 58 bits (6 [TCODE] + 20 [Relative address] + 32 [Data]).
Data trace messages are transmitted out via the MDO signals. Hence it will take eight clocks (58 bits/8
MDO signals) to send a message. There will be one idle clock before the next data trace message can be
sent.
At 56 MHz, it will take 161ns ((8+1) x 17.8) to transmit the message.
Therefore, the average number of data trace messages that can be transmitted out is 6.2 million (1/161ns)
per second, or 24.8 million bytes of read/write data per second.
24.9.9
Freescale Semiconductor
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All accesses are data trace only
56-MHz operation
Output signals are always free (not in middle of transmission) when requested
Relative Address field for data trace messages is 20 bits
Data field for data trace messages is 32 bits
One idle clock between data trace messages
MCKO
MSEO
MDO[7:0]
Throughput and Latency
Data Timing Diagrams
Assumptions for Throughput Analysis
Throughput Calculations
If multiple trace messages need to be queued at the same time, program trace
messages have a higher priority for queue entry than data trace messages,
unless the data trace buffers are full, in which case the data trace messages
are given temporary higher priority than the program trace messages.
Relative address = 0x318
Data = 0x4A
TCODE = 5
MPC561/MPC563 Reference Manual, Rev. 1.2
Figure 24-50. Date Write Message
00000101
NOTE
11000110
01001010
00000000
Don’t care data
(idle clock)
00000000
READI Module
24-57