QSG
‐
8475,
Rev.
New
HOLT
INTEGRATED
CIRCUITS
11/7/13
5
Switch
Functions
REF
NAME
DEFAULT
DESCRIPTION
SW2
LABEL[7:0]
OFF
ARINC
429
label
bits
0:7.
ON
=
‘1’
SW3
FILT[7:0]
OFF
Supplies
3.3V
to
the
1MHz
crystal
oscillator
SW4/1
nMR
ON
Master
Reset,
switch
to
OFF
to
reset
SW4/2
SPEED
ON
ON
=
High
Speed
OFF
=
Low
Speed
SW4/4
TESTDIS
ON
ON
=
Disable
Test
Mode
OFF
=
Enable
Test
Mode
SW4/5
ENTSTOUT
OFF
ON
=
Enables
Test
Output
OFF
=
Enable
Test
Mode
SW4/6
SDE
OFF
ON
=
Enables
SD
bit
checking
OFF
=
Disables
SD
bit
checking
SW4/7
SD9
OFF
ON
=
Check
for
SD9
bit
=
1
OFF
=
Check
for
SD9
bit
=
0
SW4/8
SD10
OFF
ON
=
Check
for
SD10
bit
=
1
OFF
=
Check
for
SD10
bit
=
0
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