Symbols - HP 10314D User Manual

Symbols
HP 103140
The HP 103140 configuration software sets up symbol tables on the
logic analyzers. The tables contain alphanumeric symbols which
identify data patterns or ranges. Additional labels have been defined in
the format specification menu to make triggering on specific 80386DX
cycles easier. Four of the defined labels are:
• The "STAT" label, which displays 15 status lines.
• The "BE" label, which monitors lines LBEO to LBE3. These lines
indicate valid bytes of the 32-bit data bus during specific transfers.
• The "SIZE" label, which indicates the size of the transfer on the
data bus (16-bit or 32-bit transfer).
• The "HALT" label, which differentiates between a HALT cycle
caused by executing the HALT instruction and a shutdown
caused by protection fault while attempting to process a double
fault.
Figures 2-3 and 2-4 show the symbol tables for the STAT and BE
labels. Table 2-1 lists the bits assigned to the STAT label. Table 2-2
lists the Status Label encoding for
all
types of 80386DX
microprocessor cycles.
Symbol Tobie
Lobel ( STAT
)
Bose (
Symbol Type PatternJSlort Slop
INTERRUPT ACK pattern )()()()()00()(000
I/O READ pattern XlOOOOOCXO I 0
I/O HRITE pattern
DPCDDE FETCH pattern
HALT /SHUTDOHN pattern
rlEllDRV READ
pellern X)()OO()()O( 110
rlEllORV HRITE pattern X)()OO()()O( 111
Figure 2-3. Symbol Table for the STAT Label
80386DX Preprocessor Interface
Analyzing the Intel 80386DX
2-3