Keithley KUSB-3100, User Manual

Page: 56 / 129

Chapter 3
42
Counter/Timers
(cont.)
Level Change Gate Type with Input
Debounce Support
OLSSC_SUP_GATE_LEVEL_
DEBOUNCE
Inte
rr
up
t
Interrupt Support
OLSSC_SUP_INTERRUPT Yes
FI
F
O
s
FIFO in Data Path Support
OLSSC_SUP_FIFO Yes
Output FIFO Size
OLSSC_FIFO_SIZE_IN_K 2
j
Proc
e
s
sor
Data Processing Capability
OLSSC_SUP_PROCESSOR Yes Yes
Softw
are
Calibration
Software Calibration Support
OLSSC_SUP_SWCAL Yes
k
Yes
k
a. The DIN subsystem contains eight digital input lines(0 to 7).
b. The DOUT subsystem contains eight digital output lines (0 to 7).
c. The KUSB-3100 module has a full-scale input range of ±10 V and supports gains of 1, 2, 4, and 8
to provide many effective input ranges. Refer to page 9 for more information on gains and
input ranges.
d. The KUSB-3100 module supports a fixed A/D and D/A resolution of 12-bits.
e. The resolution of the digital input port (port A) is fixed at 8-bits or eight digital input lines. The
resolution of the digital output port (port A) is fixed at 8-bits or eight digital output lines.
f. The KUSB-3100 module supports twos complement data encoding for the A/D and D/A
subsystems.
g. The external digital trigger input (trigger source is OL_TRG_EXTRA ) is active on the falling
edge (high-to-low transition) of the TTL signal.
h. Edge-to-edge measurement is supported on the gate signal only; both rising and falling edges
are supported.
i. The pulse width (duty cycle) if fixed at 50% when rate generation mode is used.
j. A 2K FIFO is used by the D/A subsystem; a 1K FIFO is used by the A/D subsystem.
k. A calibration utility, described in
Chapter 6 , is provided for the KUSB-3100.
Table 3: KUSB-3100 Supported Options (cont.)
KUSB-3100 A/D D/A DIN DOUT SRL C/T
Total Subsystems on Module 1 1 1
a
1
b
0 1