Motorola MPC533 Reference Manual page 1009

MCKO
MSEO
MDO[7:0]
TCODE = 19 (0x13)
DV =1
ERR = 0
Data Read = 0x3C16 (16 bit read access)
Figure 22-67. Upload/Download Information Message
MCKO
MSEO
MDO[7:0]
TCODE = 8
Error Code = 0b00101 (Invalid Access Opcode)
Figure 22-68. Error Message (Invalid Access Opcode)
22.7 Watchpoint Support
This section details the watchpoint support features of the READI module.
The READI module provides watchpoint messaging via the auxiliary port, as defined by
the IEEE-ISTO 5001-1999.
READI is not compliant with all the breakpoint/watchpoint requirements defined in the
IEEE-ISTO 5001 standard. Watchpoint trigger and breakpoint/watchpoint control registers
are not implemented.
Watchpoint setting via READI can only be done using the BDM protocol.
22.7.1 Watchpoint Messaging
The READI module provides watchpoint messaging using IEEE-ISTO 5001-1999 defined
public messages. The watchpoint status signals from the RCPU are snooped, and when
MOTOROLA
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
01010011 00010110
01001000
Chapter 22. READI Module
Watchpoint Support
00111100 00000000
Don't care data
(idle clock)
00000000
00000001
Don't care data
(idle clock)
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