PXN20RM Datasheet, PDF(1223/1376 Page) Freescale Semiconductor, Inc – PXN20 Microcontroller

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PXN20RM Datasheet, PDF (1223/1376 Pages) Freescale Semiconductor, Inc – PXN20 Microcontroller

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Nexus Development Interface (NDI)

Table 36-44. Public TCODEs Supported by Nexus2+ (continued)

Message Name

Error Message

Program Trace â

Direct Branch

Message w/ Sync1

Program Trace â

Indirect Branch

Message w/ Sync1

Watchpoint

Message

Resource Full

Message

Program Trace â

Indirect Branch

History Message

Program Trace â

Indirect Branch

History Message w/

Sync

Packet Size

(bits)

Min Max

6

6

4

4

5

5

6

6

4

4

1

8

1

32

6

6

4

4

1

8

1

32

6

6

4

4

4

4

6

6

4

4

4

4

1

32

6

6

4

4

1

8

1

32

1

32

6

6

4

4

1

8

1

32

1

32

Packet Packet

Name Type

Packet Description

TCODE Fixed TCODE number = 8 (0x08)

SRC

Fixed source processor identifier

ECODE Fixed error code

TCODE Fixed TCODE number = 11 (0x0B)

SRC

Fixed source processor identifier

I-CNT Variable # sequential instructions executed since last taken branch

F-ADDR Variable full target address (leading zeros truncated)

TCODE Fixed TCODE number = 12 (0x0C)

SRC

Fixed source processor identifier

I-CNT Variable # sequential instructions executed since last taken branch

F-ADDR Variable full target address (leading zeros truncated)

TCODE Fixed TCODE number = 15 (0x0F)

SRC

Fixed source processor identifier

WPHIT Fixed # indicating watchpoint sources

TCODE Fixed TCODE number = 27 (0x1B)

SRC

Fixed source processor identifier

RCODE

Fixed resource code (Refer to RCODE values in Table 36-46) -

indicates which resource is the cause of this message

RDATA Variable branch / predicate instruction history (see Section 36.7.9.3.1,

Branch Trace Messaging (BTM))

TCODE Fixed TCODE number = 28 (0x1C) (see footnote 1 below)

SRC

Fixed source processor identifier

I-CNT Variable # sequential instructions executed since last taken branch

U-ADDR Variable unique part of target address for taken branches/exceptions

HIST

TCODE

Variable branch / predicate instruction history (see Section 36.7.9.3.1,

Branch Trace Messaging (BTM))

Fixed TCODE number = 29 (0x1D)1

SRC

Fixed source processor identifier

I-CNT Variable # sequential instructions executed since last taken branch

F-ADDR Variable full target address (leading zero (0) truncated)

HIST

Variable branch / predicate instruction history (see Section 36.7.9.3.1,

Branch Trace Messaging (BTM))

Freescale Semiconductor

PXN20 Microcontroller Reference Manual, Rev. 1

36-73

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