STMicroelectronics SPC572L series Reference Manual page 946

GTM Development Interface (GTMDI)
Table 505. GTMDI Nexus trace message formats(Continued)
Min
Message
packet
name
size (bits)
6
4
Watchpoint
Hit
15
(1)
Message
0
6
4
1
3
Fetch Trace
6
14
0
6
4
Fetch Trace
1
End
(fetch trace
3
was turned
off, no faddr
6
field is sent)
0
6
4
ARU Data
1
Trace
58
0
946/2058
Max
Packet
packet
type
size (bits)
6 fixed TCODE
4 fixed
15 fixed
30 variable TSTAMP Optional, globally synchronized timestamp
6 fixed TCODE
4 fixed
1 fixed
3 fixed
6 fixed FSCNT
14 fixed
30 variable TSTAMP Optional, globally synchronized timestamp
6 fixed TCODE
4 fixed
1 fixed
3 fixed
6 fixed
30 variable TSTAMP Optional, globally synchronized timestamp
6 fixed TCODE
4 fixed
1 fixed
58 fixed
30 variable TSTAMP Optional, globally synchronized timestamp
DocID027809 Rev 4
Packet
name
Value = 15
SRC GTMDI source ID. Value = 0x7
Number indicating watchpoint source (binary coded),
WPHIT
see Table 508,
Value = 58
SRC GTMDI source ID. Value = 0x7
MCSN MCS number (0 = MCSA; 1= MCSB)
CHN MCS Channel number
Fetch Sequential Counter. Value 0 indicates there is
no relationship between the last fetch trace message
and the current message. The counter rolls back to
one when a non sequential address is fetched. The
(2)
counter increments every time a sequential address
is fetched. When counter reaches 63 a message is
sent and the counter rolls back to one. If an ERROR
message is sent the counter rolls back to zero.
FADDR First element address of the next fetch sequence
Value = 59
SRC GTMDI source ID. Value = 0x7
MCSN MCS number (0 = MCSA; 1= MCSB)
CHN MCS Channel number
The message is sent with the current value in the
FSCNT FSCNT counter and the counter rolls back to zero
after the message is sent.
Value = 60
SRC GTMDI source ID. Value = 0x7
CHN ARU Debugging Channel number (0/1)
DATA Data value read {ARU_DATAH, ARU_DATAL}
Packet description
Table 509 and Table 510
RM0400