LeCroy DDA 7 Zi series, Руководство оператора

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WavePro 7Zi
219
WP700Zi-OM-E-RevA
Note: There is an identical checkbox selection in the I
2
C decode setup
dialog. These two setups are dynamically linked, so selecting it one way in
trigger will result in an identical selection in decode. This ensures that the
trigger address format matches decoded information on the display.
Address Value Setup - Enter the Address Value in binary or hex (depending
on what was selected in the Setup Mode). The pattern condition for the
Address is always “equal”.
Binary addresses allow use of "don’t care" conditions in any bit position
(entered as X). Hexadecimal addresses allow use of "don’t care" conditions
in any nibble position) also entered as an X. If an address is set up in Binary,
then converted to Hex with a Setup Mode change, then any non-nibble
length "don’t care" values will be shown as $.
Note: Address values are always MSB format. Therefore, conversion of
address values from binary to hex when "don’t care" values are used will
be on that basis.
Direction - Enter a Direction (either Read , Write , or Don’t Care ) for the
Address value. If you have elected to use 7-bit addresses with the R/W bit
included in the address value, then this selection will be grayed out and not
selectable.
Data Setup
These setup selections are displayed if the Trigger Selection is ADDR+DATA or EEPROM.
Data Pattern Value - The pattern value is entered in either Binary or Hexadecimal mode depending on the
previous selection of Setup Mode. There are two selections for pattern value: “Pattern Value” and “Pattern Value
To”. The second selection is exposed for data entry if the Condition is set to INRANGE or OUT(of)RANGE.
Otherwise, it is grayed out. Up to 12 bytes of data can be entered as a pattern value.
If less than 12 bytes of data is entered for the pattern value, the data is assumed to begin at the 0 (i.e., first)
data byte in the I
2
C message. If this is not desired, then add preceding or trailing don’t care (X) nibbles to the
pattern value.
When more than one byte of data is entered as a data pattern value, the data is treated as “Most Significant
Byte (MSB) First”. This is especially important to remember when setting up <=, <, >, >=, INRANGE and
OUTRANGE comparison.
Note: In Hexadecimal format, data must be entered as full bytes even though the minimum required
acceptable entry is a nibble. If less than a full byte is entered, then a "don’t care" X will precede the pattern
values entered.
Condition - The DATA condition can be set many different ways. Possible conditions are <=, <, =, >, >=, not =,
in a range, out of a range, or don’t care.