CDB5378 Datasheet, PDF (51/72 Pages) Cirrus Logic – Single-channel Seismic Evaluation System

CDB5378
3.5.4 Macros
The Macros sub-panel is designed to write a large number of registers with a single command. This al-
lows the target evaluation system to be quickly set into a specific state for testing.
The Register control gives access to both digital filter registers and SPI registers. These registers can be
written with data from the Data control, or data can be read and output to a text window. The Register
control can also select special commands to be executed, with the Data control used to define a param-
eter value for the special command, if necessary.
Control
Write / Read
Register
Data
Clear
Load
Save
Insert
Delete
Macro1 - Macro4
Run
Description
Selects the type of operation to be performed by the inserted macro command.
Selects the target register for the inserted macro command. Also selects special
commands that can be performed.
Sets the register data value for the inserted macro command. Also sets the parame-
ter value for special commands.
Clears the currently displayed macro.
Loads a previously saved macro.
Saves the currently displayed macro. Macros can be saved with unique names or
can be saved as External Macros.
Inserts a macro command at the selected macro line. The macro command is built
from the Write/Read, Register, and Data controls.
Deletes the macro command at the selected macro line.
Selects which of the four working macros is displayed.
Runs the currently displayed working macro.
3.5.5 GPIO
The GPIO sub-panel controls the digital filter GPIO pin configurations. GPIO pins have dedicated func-
tions on the target board, but can be used in any manner for custom designs.
Control
Direction
Pull Up
Data
Write
Read
Description
Sets the selected GPIO pin as an output (*) or input ( ).
Turns the pull up resistor for the selected GPIO pin on (*) or off ( ).
Sets the selected output GPIO pin to a high (*) or low ( ) level.
Initiates a write to GPIO registers.The Direction, Pull Up and Data controls are read
to determine the register values to be written.
Initiates a read from GPIO registers.The Direction, Pull Up and Data controls are
updated based on the register values that are read.
DS639DB3
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