MAC7200 datasheet(210/976 Pages) FREESCALE

210 / 976 page

Introduction

MAC7200 Microcontroller Family Reference Manual, Rev. 2

132

Freescale Semiconductor

Table 11-1. Public TCODEs Supported

Message Name

Minimum

Packet

Size (bits)

Maximum

Packet

Size (bits)

Packet

Name

Packet

Type

Packet Description

Debug Status

TCODE

fixed

TCODE number = 0

SRC

fixed

source processor identifier (multiple Nexus configuration)

STATUS

fixed

Debug Status Register (DS[31:24])

Ownership

Trace

Message

TCODE

fixed

TCODE number = 2

SRC

fixed

source processor identifier (multiple Nexus configuration)

PROCESS fixed

Task/Process ID tag

Program Trace –

Direct Branch

Message

TCODE

fixed

TCODE number = 3 (see Note below)

SRC

fixed

source processor identifier (multiple Nexus configuration)

I-CNT

variable

# sequential instructions executed since last taken branch

Program Trace –

Indirect Branch

Message

TCODE

fixed

TCODE number = 4 (see Note below)

SRC

fixed

source processor identifier (multiple Nexus configuration)

I-CNT

variable

# sequential instructions executed since last taken branch

U-ADDR

variable

unique part of target address for taken branches/exceptions

Data Trace –

Data Write

Message

TCODE

fixed

TCODE number = 5

SRC

fixed

source processor identifier (multiple Nexus configuration)

DSZ

fixed

data size (Refer to Table 11-6)

U-ADDR

variable

unique portion of the data write address

DATA

variable

data write value (see Note)

Data Trace –

Data Read

Message

TCODE

fixed

TCODE number = 6

SRC

fixed

source processor identifier (multiple Nexus configuration)

DSZ

fixed

data size (Refer to Table 11-6)

U-ADDR

variable

unique portion of the data read address

DATA

variable

data read value (see Note)

Error Message

TCODE

fixed

TCODE number = 8

SRC

fixed

source processor identifier (multiple Nexus configuration)

ERROR

fixed

error code (Refer to Table 11-2)

Program Trace –

Direct Branch

Message w/

Sync

TCODE

fixed

TCODE number = 11 (see Note below)

SRC

fixed

source processor identifier (multiple Nexus configuration)

I-CNT

variable

# sequential instructions executed since last taken branch

F-ADDR

variable

full target address (leading zero (0) truncated)

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