Tektronix TMS 600 SAB-C167 80C167, Instruction Manual, Page: 37 / 94

Acquiring and Viewing Disassembled Data
TMS 600 SAB-C167 80C167 Microcontroller Support Instruction Manual
2–7
You can make optional selections for disassembled data. In addition to the
common selections (described in the information on basic operations), you can
change the displayed data in the following ways:
H
Specify the bus width and the number of address lines to be used
H
Specify the mode of operation
Bus width.
Using the Custom fields you must select one of four modes of
operation:
Bus Mode 16-bit MUX
16-bit DEMUX
8-bit MUX
8-bit DEMUX
Number of address lines.
Using the Custom fields you must select the number of
address lines to be used. There are four possible selections:
Address Lines A15 – A0
A17 – A0
A19 – A0
A23 – A0
Write Configuration. Using the Custom fields you must select the write configura-
tion that the microcontroller is to use. There are two possible selections:
Write Mode WR
WRL-WRH
In WR Mode pin WR~ retains its normal function. In WRL-WRH mode pin
WR~ acts as WRL~, and pin WRH~ acts as Byte High Enable.
Bus Arbitration. Using the Custom fields you must set the bus arbitration to
Disabled or Enabled, depending on the microcontroller mode you are using.
The disassembler has a Mark Opcode function that allows you to change the
interpretation of a cycle type. Using this function, you can select a cycle and
change it to one of the following cycle types:
Opcode marks the current sequence as an opcode fetch cycle.
Extension marks the current sequence as an extension.
Data Read marks the current sequence as a Data read.
Pec Read marks the current sequence as a Pec read.
Flush marks the current sequence as flush.
Undo Mark removes all marks from the current sequence.
Optional Display
Selections
Marking Cycles