SuperH (SH) 64-bit RISC Series SH-5 System Architecture, Volume ...

PRELIMINARY DATA
132 Debug protocols and interfaces
PL Watchpoint trace message (7-bytes minimum, 20-bytes maximum)
Field
Size
Header bit
positions
Description
MATCH_LOSS 1-bits [12] Set to indicate that some SuperHyway cells/tokens
which should have been captured were lost because
the hit occurred when either:
- The previous, or current) captured cell/token was
being transferred to the DM.
- The bus capture buffer was frozen (by the PL
channel raising a debug interrupt). See Debug
interrupt actions on page 184).
No watchpoint hit is registered for these additional bus
transactions.
ADDR_ABSOLUTE 1-bits [13]
RESERVED 2-bits [15:14]
TIMESTAMP 0 or 1
byte
N/A
SOURCE 1-byte N/A
DESTINATION 1-byte N/A
OPCODE 1-byte N/A
TRANSACTION ID 1-byte N/A
DATA_MASK 0 or 1
byte
N/A
When the opcode corresponds to a Flush (0x18),
Purge (0x8), Success (0x80) or Failure (0x81) this
field is 0 bytes in length (that is, it is not encoded)
For other opcodes it is encoded as a 1 byte field and
contains the mask value from the captured bus
packet.
D R A FT
Table 46: PL Watchpoint trace message
SuperH, Inc.
SH-5 System Architecture, Volume 3: Debug 05-SA-10003 v1.0