Digitally Controlled Analog I/O Processor
8
MX839 PRELIMINARY INFORMATION
4.5.2 Write Only Register (8-Bit and 16-Bit)
HEX
ADDRESS/
COMMAN
D
REGISTER
NAME
BIT 7
(D7)
BIT 6
(D6)
BIT 5
(D5)
BIT 4
(D4)
BIT 3
(D3)
BIT 2
(D2)
BIT 1
(D1)
BIT 0
(D0)
$01
$D0
$D2
RESET
CLOCK
N/A
0
N/A
0
N/A
N/A
0
N/A
0
N/A
N/A
N/A
BIT 0
BIT 0
BIT 0
0
DIVIDER
BIT 1
CONTROL
VARIABLE
ATTENUATOR (1)
VARIABLE
ATTENUATOR (2)
DAC
0
BIT 2
MOD1
BIT 2
MOD2
BIT 2
DAC2
MOD1
ENABLE
MOD2
ENABLE
NBIT
0
0
BIT 4
BIT 4
0
BIT 3
BIT 1
0
0
BIT 3
BIT 1
NBIT
DAC1
NBIT
DAC2
DAC1
DAC3
$D3
$D4
CONTROL
DAC1 DATA
(1)
DAC3
ENABLE ENABLE ENABLE
BIT 7
BIT 6
BIT 5
0
BIT 4
0
BIT 3
0
BIT 2
0
BIT 1
BIT 9
BIT 1
BIT 9
BIT 1
BIT 0
BIT 8
BIT 0
BIT 8
BIT 0
BIT 8
0
*See Note 1
(2)
0
BIT 7
0
0
BIT 6
0
DAC2 DATA
(1)
$D5
$D6
BIT 5
0
BIT 4
0
BIT 3
0
BIT 2
0
*See Note 1
(2)
DAC3 DATA
(1)
BIT 7
0
BIT 6
0
BIT 5
0
BIT 4
BIT 3
BIT 2
*See Note 1
(2)
0
0
0
BIT 9
A/DIN4
ACTIVE
A/D
A/DIN1
ACTIVE
A/DIN2
ACTIVE
A/DIN3
ACTIVE
$D7
$D8
CONTROL
0
1
READ
MAG COMP ONE
LEVELS (1)
MAGNITUDE COMPARATOR UPPER LEVEL
BIT 5 BIT 4 BIT 3 BIT 2
MAGNITUDE COMPARATOR LOWER LEVEL
BIT 5 BIT 4 BIT 3 BIT 2
MAGNITUDE COMPARATOR UPPER LEVEL
BIT 5 BIT 4 BIT 3 BIT 2
MAGNITUDE COMPARATOR LOWER LEVEL
BIT 5 BIT 4 BIT 3 BIT 2
MAGNITUDE COMPARATOR UPPER LEVEL
BIT 5 BIT 4 BIT 3 BIT 2
MAGNITUDE COMPARATOR LOWER LEVEL
BIT 5 BIT 4 BIT 3 BIT 2
MAGNITUDE COMPARATOR UPPER LEVEL
BIT 5 BIT 4 BIT 3 BIT 2
MAGNITUDE COMPARATOR LOWER LEVEL
BIT 5 BIT 4 BIT 3 BIT 2
BIT 7
BIT 7
BIT 7
BIT 7
BIT 7
BIT 7
BIT 7
BIT 7
BIT 6
BIT 6
BIT 6
BIT 6
BIT 6
BIT 6
BIT 6
BIT 6
BIT 1
BIT 1
BIT 1
BIT 1
BIT 1
BIT 1
BIT 1
BIT 1
BIT 0
BIT 0
BIT 0
BIT 0
BIT 0
BIT 0
BIT 0
BIT 0
MAG COMP ONE
LEVELS (2)
MAG COMP TWO
LEVELS (1)
$D9
$DA
$DB
MAG COMP TWO
LEVELS (2)
MAG COMP THREE
LEVELS (1)
MAG COMP THREE
LEVELS (2)
MAG COMP FOUR
LEVELS (1)
MAG COMP FOUR
LEVELS (2)
Table 2: Write Only Register (8-Bit and 16-Bit)
Note
1. A second byte is expected by the 'C-BUS' interface only when the 'NBIT DACn' bit of the 'DAC Control Register' is
set high. Otherwise, the data transfer is a single byte (Bit 7 to Bit 0).
© 1998 MXxCOM Inc.
www.mxcom.com Tele: 800 638-5577 336 744-5050 Fax: 336 744-5054
Doc. # 20480164.002
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
All trademarks and service marks are held by their respective companies.
CMLMICRO [ CML MICROCIRCUITS ]
