Analog Devices EVAL-ADFS5758SDZ, Руководство пользователя

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EVAL-ADFS5758SDZ User Guide UG-1688
Rev. 0 | Page 7 of 20
ADFS5758 BLOCK DIAGRAM AND FUNCTIONS
The ADFS5758 ACE block diagram, as shown in Figure 8,
appears similar to the block diagram shown in the ADFS5758
data sheet for simplified correlation of the functions on the
EVAL-ADFS5758SDZ evaluation board with the descriptions
given in the
ADFS5758 data sheet.
A full description of each block and register setting is available
in the
ADFS5758 data sheet. The full window ADFS5758 block
diagram, with labels, is shown in Figure 8. Table 3 describes the
functionality of each block.
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Figure 8. ADFS5758 ACE Block Diagram with Labels
Table 3. ADFS5758 Block Diagram Label Functions (See Figure 8)
Label Function Description
A To apply any changes made to the block diagram or to register values in the memory map to the device, click Apply Changes .
B
To read back all of the registers of the device, click Read All .
C Click Reset Chip to reset the ADFS5758 . The Reset Chip button has the same functionality as the software reset of the ADFS5758 .
D
Click Diff to show the registers that are different from the data stored on the device. This function shows what has changed since
the last time the registers were read.
E Click Software Defaults to load the software defaults of the device. These values are not written to the hardware. Click Apply
Changes (Label A in Figure 8) to write the software default values to the hardware.
F Click to view the memory map side by side with the block diagram.
G The AD0 and AD1 check boxes set the device under test (DUT) address of the device and must correspond to the JP12 and JP14
links on the hardware. A selected box represents a high state. A cleared box represents a low state.
H If the /RESET box is selected, the SDP-S sets the RESET pin high. Otherwise, the SDP-S pulls RESET low.
I If the /LDAC box is selected, the SDP-S sets the LDAC pin high. Otherwise, the SDP-S pulls LDAC low.
J The ACE plugin monitors the FAULT pin. If the FAULT pin is low, the /FAULT indicator LED illuminates red.
K The VI_OUT field displays the calculated output at the VI
OUT
pin and displays if the output is in volts, milliamperes, or is high
impedance (high-Z).
L1 to
L15 The graphical user interface (GUI) access for several registers. Popup menus, dropdown menus, and hexadecimal text fields are
available in the GUI to configure several registers of the
ADFS5758 . To write the changes to the device, click Apply Changes (Label
A). The functions within the GUI that control various registers (Label L1 through Label L15 in Figure 8) are described in Table 4.
M The Calibration Memory Refresh button initiates a write to the key register to perform a calibration memory refresh.
N The SW LDAC button initiates a write to the key register to perform a software LDAC command.
O The NOP Command button initiates a write to Address 0x00 for a no operation (NOP) command.
P The Configure ADC button writes the data selected in the ADC Config pane (Label L15) to the ADC configuration register.