Analogue Control Interface
FX839
Write Only Register (8-Bit and 16-Bit)
HEX
ADDRESS/
COMMAND
$01
$D0
$D2
REGISTER
NAME
RESET
CLOCK/IRQ
CONTROL
VARIABLE
ATTENUATOR (1)
VARIABLE
ATTENUATOR (2)
DAC
CONTROL
DAC1 DATA
(1)
*See Note 1
(2)
DAC2 DATA
(1)
*See Note 1
(2)
DAC3 DATA
(1)
*See Note 1
(2)
ADC
CONTROL
MAG COMP ONE
LEVELS (1)
MAG COMP ONE
LEVELS (2)
MAG COMP TWO
LEVELS (1)
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)
BIT 7
(D7)
N/A
0
0
0
NBIT
DAC1
BIT 7
0
BIT 7
0
BIT 7
0
0
BIT 7
BIT 7
BIT 7
BIT 7
BIT 7
BIT 7
BIT 7
BIT 7
BIT 6
(D6)
N/A
0
0
0
NBIT
DAC2
BIT 6
0
BIT 6
0
BIT 6
0
1
BIT 6
BIT 6
BIT 6
BIT 6
BIT 6
BIT 6
BIT 6
BIT 6
BIT 5
(D5)
N/A
0
MOD1
ENABLE
MOD2
ENABLE
NBIT
DAC3
BIT 5
0
BIT 5
0
BIT 5
0
BIT 4
(D4)
N/A
0
BIT 4
BIT 4
0
BIT 4
0
BIT 4
0
BIT 4
BIT 3
(D3)
N/A
0
BIT 3
BIT 3
DAC1
ENABLE
BIT 3
0
BIT 3
0
BIT 3
BIT 2
(D2)
N/A
BIT 2
MOD1
BIT 2
MOD2
BIT 2
DAC2
ENABLE
BIT 2
0
BIT 2
0
BIT 2
BIT 1
(D1)
N/A
DIVIDER
BIT 1
BIT 1
BIT 1
DAC3
ENABLE
BIT 1
BIT 9
BIT 1
BIT 9
BIT 1
BIT 9
ADCIN4
ACTIVE
BIT 1
BIT 1
BIT 1
BIT 1
BIT 1
BIT 1
BIT 1
BIT 1
BIT 0
(D0)
N/A
BIT 0
BIT 0
BIT 0
0
BIT 0
BIT 8
BIT 0
BIT 8
BIT 0
BIT 8
0
BIT 0
BIT 0
BIT 0
BIT 0
BIT 0
BIT 0
BIT 0
BIT 0
$D3
$D4
$D5
$D6
$D7
$D8
$D9
$DA
$DB
0
0
0
ADCIN1
ADCIN2
ADCIN3
READN
ACTIVE
ACTIVE
ACTIVE
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
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).
©
1997 Consumer Microcircuits Limited
9
D/839/4
CMLMICRO [ CML MICROCIRCUITS ]
