National Instruments SCXI-1120 User Manual page 127

Index
reference-mode selection (jumper W46),
2-7
registers
programming considerations, 5-1 to 5-3
initialization, 5-3
rear signal connector pin
equivalences, 5-2
register selection and write
procedure, 5-2 to 5-3
SCXI-1120 registers, 4-1 to 4-4
Configuration Register, 2-30 to 2-31,
3-7, 4-3 to 4-4
Module ID Register, 2-31, 3-8, 4-2
Slot 0 registers, 4-5 to 4-8
FIFO Register, 4-8
Hardscan Control Register
(HSCR), 4-7
Slot-Select Register, 4-6
RESET* signal
description of, 3-4, C-3
initialization, 5-3
and SPI bus, 3-5
Revision A and B SCXI-1120 signal
conditioning module
detailed parts locator diagram, F-3
general parts locator diagram, F-2
photograph, F-1
RSVD bit, 4-4, 4-7
RSVD signal
front connector, 2-13, D-2
rear signal connector, 2-25, B-2
SCXIbus connector, 3-4, C-3
RTEMP bit, 4-4
S
SCANCLK signal
analog output, 3-13
module programming, 5-9
multiplexed scanning, 3-14 to 3-15
rear signal connector, 2-25, B-2
timing requirements, 2-28
SCANCLKEN bit, 4-4
SCANCON signal
analog output, 3-13
multiplexed scanning, 3-14 to 3-15
SCXIbus connector, 3-5, C-4
SCANCONEN bit, 4-4, 4-7
scanning measurements
© National Instruments Corporation
module programming, 5-8 to 5-10
channel scanning from other
modules, 5-9
channel scanning from SCXI-1120
via another module, 5-9
multiple-chassis scanning, 5-10
multiple-module multiplexed
scanning, 5-9 to 5-10
single-module multiplexed scanning
(direct), 5-9
single-module multiplexed scanning
(indirect), 5-9
single-module parallel scanning, 5-8
programming, 5-5 to 5-12
acquisition enable, triggering, and
servicing, 5-12
data acquisition and board
programming, 5-6 to 5-8
Counter 1 and SCANDIV, 5-8
scanning examples, 5-12 to 5-15
Slot 0 hardscan circuitry,
5-10 to 5-11
scanning modes
theory of operation, 3-13 to 3-16
multiplexed scanning, 3-14 to 3-16
multiple-chassis scanning, 3-16
multiple-module multiplexed
single-module multiplexed
single-module parallel
scanning, 3-14
SCXI-1120. See also configuration;
installation.
block diagram, 3-1
contents of kit, 1-2
custom cables, 1-4
definition of, xi, 1-1
optional equipment, 1-3 to 1-4
optional software, 1-2 to 1-3
overview, 1-1
Revision A and B signal conditioning
module
detailed parts locator diagram, F-3
general parts locator diagram, F-2
photograph, F-1
unpacking, 1-4
SCXI-1120 registers, 4-1 to 4-4
Index-6
scanning, 3-15 to 3-16
scanning, 3-14 to 3-15
SCXI-1120 User Manual