参数资料
型号: MAX5725AEVKIT#
厂商: Maxim Integrated Products
文件页数: 15/35页
文件大小: 0K
描述: EVAL KIT MAX5725
标准包装: 1
系列: *
MAX5723/MAX5724/MAX5725
Ultra-Small, Octal-Channel, 8-/10-/12-Bit Buffered
Output DACs with Internal Reference and SPI Interface
22
Maxim Integrated
Table
2.
SPI
Commands
Summary
(continued)
COMMAND
B23
B22
B21
B20
B19
B18
B17
B16
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
DESCRIPTION
LOAD_ALL
1
0
1
X
Updates
all
DAC
latches
with
current
CODE
register
data
CODE_ALL
LOAD_ALL
1
0
1
0
CODE
REGISTER
DATA[11:4]
CODE
REGISTER
DATA[3:0]
X
Simultaneously
writes
data
to
the
all
CODE
registers
while
updating
all
DAC
registers
RETURN_ALL
1
0
1
RETURN
REGISTER
DATA[11:4]
RETURN
REGISTER
DATA[3:0]
X
Writes
data
to
all
RETURN
registers
SPI_DATA_
REQUEST
1
0
1
DAC
Selection
INC
DATA
SEL
[1:0]
00
=
DAC
01
=
CODE
10
=
RET
11
=
WDT
X
Setup
data
request
for
readback.
INC
indicates
if
the
DAC
selection
is
incremented
to
the
next
DAC
after
each
SPI_READ
_DATA
operation
DATA
SEL[1:0]
indicates
the
data
content
to
be
read
back
SPI_READ
STATUS
1
0
X
DPHA
=
0
Readback
status
1
0
1
X
DPHA
=
1
Readback
status
SPI_READ
DATA
1
0
1
0
X
DPHA
=
0
Readback
requested
data
1
0
1
X
DPHA
=
1
Readback
requested
data
NO
OPERATION
COMMANDS
No
Operation
1
0
1
X
These
commands
will
have
no
effect
on
the
device,
but
will
refresh
the
watchdog
timer
if
safety
level
is
set
to
low.
1
0
1
0
X
1
0
1
X
Reserved
Commands:
Any
commands
not
specifically
listed
above
are
reserved
for
Maxim
internal
use
only.
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