Rainbow Electronics MAX5661 - Manual (Page 23)

MAX5661
Single 16-Bit DAC with Current and Voltage
Outputs for Industrial Analog Output Modules
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Set the OUTI4/0EN bit (D11) low to enable the OUTI4/0
hardware input. Set the I4TO20BIT bit (D10) high to
select the current-output range through the software.
Set the CLREN bit (D9) low to enable the CLR hardware
input. Set the CLRMODE bit (D8) high to force the out-
put to the value in the clear register or the zero state
when the CLR hardware input is pulled low. Set the
RCLR bit (D7) high to remain in the clear state. Set the
FAULTEN bit (D6) high to enable the FAULT output functionality. Set the CLRFLAGEN bit (D5) high to acti-
vate the FAULT output when the MAX5661 is in the
clear state.
Bits D4, D3, and D2 are read-only bits. The FAULTV bit
(D4) is set to 1 when OUTV is short circuited. The
FAULTI bit (D3) is set to 1 when OUTI is open circuited.
The CLEARST bit (D2) is set to 1 when the MAX5661 is
in the clear state.
C7 C6 C5 C4 C0 D15 D14 D13 D0
WRITE COMMAND EXECUTED
DIN CLOCKED IN ON THE
SCLK RISING EDGE
SCLK
DIN
CS
Figure 4. Write Timing
C7 C6 C5 C4 C0 D15 D14 D13 D0
C7 C6 C5 C4 C0 D15 D14 D13 D0
READ COMMAND EXECUTED
DOUT READY
DOUT TRANSITIONS ON THE FALLING SCLK EDGE
SCLK
SCLK
DIN
DOUT
DIN
DOUT
X X X X X X X X X
CS
CS
X = DON'T CARE.
Figure 5. Read Timing