Datasheet

Development Support

Technical Data MC68HC912DT128A — Rev 4.0

410 Development Support MOTOROLA

R/W — Read/Write Flag

0 = Write

1 = Read

TTAGO — Trace, Tag, Go Field

REGN — Register/Next Field

Indicates which register is being affected by a command. In the case of

a READ_NEXT or WRITE_NEXT command, index register X is pre-

incriminated by 2 and the word pointed to by X is then read or written.

Table 20-5. TTAGO Decoding

TTAGO Value Instruction

00 —

01 GO

10 TRACE1

11 TAGGO

Table 20-6. REGN Decoding

REGN Value Instruction

000 —

001 —

010 READ/WRITE NEXT

011 PC

100 D

101 X

110 Y

111 SP

Frees

cale Semiconductor,

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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