MC68HC12D60 Datasheet, PDF (352/432 Pages) Motorola, Inc – Advance Information - Rev 4.0

Freescale Semiconductor, Inc.
Development Support
H/F — Hardware/Firmware Flag
0 = Firmware command
1 = Hardware command
DATA — Data Flag - Shows that data accompanies the command.
0 = No data
1 = Data follows the command
R/W — Read/Write Flag
0 = Write
1 = Read
TTAGO — Trace, Tag, Go Field
Table 19-5. TTAGO Decoding
Table 19-6TTAGO Value
00
01
10
11
Table 19-7Instruction
—
GO
TRACE1
TAGGO
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 19-8. REGN Decoding
REGN Value
000
001
010
011
100
101
110
111
Instruction
—
—
READ/WRITE NEXT
PC
D
X
Y
SP
Advance Information
352
Development Support
For More Information On This Product,
Go to: www.freescale.com
68HC(9)12D60 — Rev 4.0
MOTOROLA