Motorola MPC533 Reference Manual page 995

MCKO
MSEO
00001110 00000000 11001110 10001010 01000110 00000001 010111000000000000000000
MDO[7:0]
TCODE = 14 (0xE)
Number of messages cancelled = 0
Full target address = 0x1468ACE
Data = 0x5C
Figure 22-52. Data Read Synchronization Message
MCKO
MSEO
MDO[7:0]
TCODE = 8
Error Code = 0b00111 (Program/Data/Ownership trace overrun)
Figure 22-53. Error Message (Program/Data/Ownership Trace Overrun)
22.5 Read/Write Access
The read/write access feature allows access to internal memory-mapped space via the
auxiliary port. Read/write mechanism supports single and block, reads and writes.
22.5.1 Functional Description
The READI module is capable of bus mastership on the L-bus and for setting up and
reading data and status.
All accesses are setup and initiated to the read/write access register (RWA) and
upload/download information register (UDI) via the four auxiliary access public messages:
device ready for upload/download, upload request (tool requests information), download
request (tool provides information), upload/download information (device/tool provides
information).
MOTOROLA
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
11001000
Chapter 22. READI Module
Read/Write Access
Don't care data
(idle clock)
00000000
00000001
Don't care data
(idle clock)
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