HP 64780A, User Manual

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synthesized signals, and are collectively called the status lines. You can use status
values as trigger or storage qualifiers. For example, you may want to capture
processor reads to a certain address, but not processor writes. You can use a status
value to qualify only processor read cycles to the memory location.
A number of status values have already been defined for you. They are collectively
known as the status equates and cover most common processor operations. Status
equates appear on softkeys at the appropriate time so you can include the status you
want in your command line.
The following table lists the predefined status values associated with each of the
status softkeys.
68360 Status Softkeys and Associated Values
Softkey Label Status Bits (79..64) Description
--------- -------------------- ------------------------
berr xxxx xx0x xxxx xxxx port bus error
cpu x0xx xxxx xxxx 111x cpu space access
data x0xx xxxx xxxx x01x data cycle
ds_byte xxxx xxx1 0xxx xxxx 8-bit port
ds_long xxxx xxx0 0xxx xxxx 32-bit port
ds_word xxxx xxx0 1xxx xxxx 16-bit port
fc3 x1xx xxxx xxxx xxxx function code 3
fetch 0xxx xxxx xxxx xxxx instruction fetch
flush xxx0 xxxx xxxx xxxx pipeline flush
halt xxxx x0xx xxxx xxxx processor halted
program x0xx xxxx xxxx x10x program cycle
read xxxx xxxx xxx1 xxxx read cycle
retry xxxx x00x xxxx xxxx port not ready
siz_3byt xxxx xxxx x11x xxxx 3 byte request
siz_byte xxxx xxxx x01x xxxx byte request
siz_long xxxx xxxx x00x xxxx long request
siz_word xxxx xxxx x10x xxxx word request
sup x0xx xxxx xxxx 1xxx supervisor cycle
supdata x0xx xxxx xxxx 101x supervisor data cycle
supprog x0xx xxxx xxxx 110x supervisor program cycle
user x0xx xxxx xxxx 0xxx user cycle
userdata x0xx xxxx xxxx 001x user data cycle
userprog x0xx xxxx xxxx 010x users program cycle
write xxxx xxxx xxx0 xxxx write cycle
xdma xx0x xxxx xxxx xxxx external DMA cycle
Chapter 7: Using the Emulation-Bus Analyzer
Making Complex Trace Measurements
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