User Guide
Table Of Contents
Revision 1 4
1 – Peripherals on the Canvas
Enabling/Disabling Peripherals
Certain peripherals in the MSS can be enabled or disabled from use. This is indicated graphically by the
checkbox in the lower right corner of the instance item in the Canvas, as shown in
Figure 1-1 and
Figure 1-2.
Click the checkbox icon to enable or disable the peripheral.
Why would I disable or enable peripherals?
• Some I/Os are shared between MSS peripherals and general purpose user I/Os. Disabling a
peripheral enables you to reclaim some of the I/Os for general purpose use in the MSS GPIO or
MSS I/O blocks. See the
MSS GPIO and MSS I/O configurator handbooks for more details.
• Disabling a peripheral causes it to be held in reset when the Microcontroller Subsystem is
powered up. This minimizes any activity that may occur in the peripheral on startup and reduces
power consumption.
Configuring Peripherals
Peripherals that have configurable options will have a wrench icon in the lower right corner of the
instance item in the Canvas, as shown in
Figure 1-3.
Click the wrench icon or double-click the instance to configure the peripheral.
Figure 1-1 • Enabled Peripheral
Figure 1-2 • Disabled Peripheral
Figure 1-3 • Wrench Icon on the MSS Canvas