Agilent Technologies 93000 SOC Series Training Manual page 249

Lesson 5 – Waveform Generation with the Mixed-Signal Tool
Choose the R .
3
ANGE
F S : The amplitude is adjusted to the size of the pin
–
ULL CALE
group. Binary code would yield 0 to FS (full scale), 2's
complement would yield –FS/2 to +FS/2 – 1.
W R
–
AVEFORM ANGE
If you choose W
AVEFORM
waveform amplitude and the size of the pin group. Values of the
generated waveform that exceed the width of the pin group are cut
off.
Example: If you had a 4-bit DAC and would download binary code,
all values below zero would be transmitted as 0000 and all values
above 15 as 1111. If you would download 2's complement code to
the same DAC, all values below –8 would be transmitted as 1000 (–
8) and all values above 7 as 0111 (+7).
Choose the kind and number of repetitions.
4
R W
–
EPEAT AVEFORM
according to the entered number of repetitions.
R P : Each point of the generated waveform will be
–
EPEAT OINT
repeated according to the entered number of repetitions.
Example: If you had a 3-bit DAC and would download a full scale
ramp waveform (8 data points from 0 to 7), a point repetition of
three would download the sequence 0, 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4,
4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 7.
Choose the kind of O
5
I : Inserts the data into the vector memory starting at the
–
NSERT
address location specified in the S
O : Overwrites the current contents of the vector
–
VERWRITE
memory starting at the S
Enter the D
6
ESTINATION
memory address:
G N : Pin group name defined in the pin configuration.
–
ROUP AME
T L : The vector label to hold the waveform data.
–
EST ABEL
P : (Opetional)
–
ORT
downloaded. All the member pins of the port must include the
member of the pin group specified in the Group Name field.
If a label for a single port (non-multi-port) is specified in the Test
Label field, enter "@" or set this field blank.
S V
–
TARTING ECTOR
shall begin.
D C : The device cycle to be assigned.
–
EVICE YCLE
Click OK.
7
: The amplitude is not adjusted.
R , you must pay attention to the
ANGE
: The generated waveform will be repeated
.
PERATION
TARTING
V
TARTING ECTOR
: The assignment to a pin group and vector
Target port name to which the generated vector is
: Vector number at which the download of data
V field.
ECTOR
address.
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