Block Diagram And Description; Memory Map - Analog Devices EVAL-ADGS1208SDZ User Manual

UG-1271

BLOCK DIAGRAM AND DESCRIPTION

The similar appearance of the EVAL-ADGS1208SDZ/EVAL-
ADGS1209SDZ software to the functional block diagram of the
ADGS1208/ADGS1209 data sheet renders it easy to correlate
the board functions of the EVAL-ADGS1208SDZ/EVAL-
ADGS1209SDZ with the description of the functional block
diagram in the data sheet. The
sheet provides comprehensive descriptions for each function,
block, register, and setting.
Table 3 describes the blocks and their functions pertaining to
the evaluation board. The full screen block diagram shown in
Figure 4 shows the functionality of each block.
Table 3. Block Diagram Functions
Label Function
A The switch icons configure which channel is selected.
B The Detect Invalid Read/Write, Detect Invalid SCLK Count, and Detect Invalid CRC check boxes enable or disable the error
detection features on the SPI interface.
C The Enable Burst Mode check box enables or disables burst mode.
D The RW ERROR FLAG, SCLK ERROR FLAG, and CRC ERROR FLAG indicators illuminate red when the relevant error flags are
asserted in the error flags register.
E The Clear Flags button clears the error flags register.
F The Apply Changes button applies all modified values to the devices.
G The SW Reset button causes the device to perform a software reset.
H The GPO1, GPO2, GPO3, and GPO4 buttons select whether the corresponding GPO is on or off.
EVAL-ADGS1208SDZ/EVAL-ADGS1209SDZ
ADGS1208/ADGS1209 data
F
D
H
Figure 4. EVAL-ADGS1208SDZ/EVAL-ADGS1209SDZ Block Diagram with Labels

MEMORY MAP

From the Memory Map button, all registers are fully accessible
and can be edited at a bit level (see Figure 5 and Figure 6). Bits
shaded in dark gray are read only bits and inaccessible from
ACE. All other bits are toggled. The Apply Changes button
transfers data modifications to the device.
All changes in the memory map correspond to the block
diagram. For example, if the internal register bit is enabled, it
displays as enabled on the block diagram. Bolded bits or
registers represent modified values that have not been
transferred to the evaluation board. After clicking Apply
Changes, the data is transferred to the evaluation board and no
longer appears as bolded.
A
G
E
B
C
Rev. 0 | Page 6 of 17
User Guide