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Table 22-19. Public Messages Supported (continued)
Minimum
Message Name
Size (bits)
Data Trace —
Data Write
Synchronization
Message
Data Trace —
Data Read
Synchronization
Message
Watchpoint
Message
Auxiliary Access —
Device Ready for
Upload/Download
Message
Auxiliary Access —
Upload Request
Message
Auxiliary Access —
Download Request
Message
Auxiliary Access —
Upload/Download
Information Message
Resource Full
2
Message
1
Refer to Table 22-20 for the error message codes.
2
Not available on all revisions. Refer to the device errata for the version of silicon in use.
MOTOROLA
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Maximum
Packet
Packet
Packet Type
Size (bits)
6
6
Fixed
1
1
Variable
1
25
Variable
8
32
Variable
6
6
Fixed
1
1
Variable
1
25
Variable
8
32
Variable
6
6
Fixed
6
6
Fixed
6
6
Fixed
6
6
Fixed
8
8
Fixed
6
6
Fixed
8
8
Fixed
8
80
Variable
6
6
Fixed
8
80
Variable
6
6
Fixed
1
4
Variable
Chapter 22. READI Module
Packet Description
TCODE number = 13 (0xD)
number of messages canceled
full target address
data write value (8, 16, 32 bits)
TCODE number = 14 (0xE)
number of messages canceled
full target address
data read value (8, 16, 32 bits)
TCODE number = 15 (0xF)
number indicating watchpoint source
TCODE number = 16 (0x10)
TCODE number = 17 (0x11)
opcode to enable selected configuration,
status or data upload from MCU
TCODE number = 18 (0x12)
opcode to enable selected configuration or
data download to MCU
Depending upon opcode selected for
download, information to be downloaded to
device will vary.
TCODE number = 19 (0x13)
1). For an access, depending on word size
selected (SZ field in RWA register),
variable-length packets of information (10,
18, or 34 bits) will be uploaded/downloaded
from/to device.
2). Depending upon opcode selected for
upload from internal READI registers,
information to be uploaded to the device
will vary.
TCODE number = 27 (0x1B)
resource code
Signal Interface
Direction
From
Device
From
Device
From
Device
From
Device
From
Tool
From
Tool
From
Device /
Tool
From
Device
22-29
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