Datasheet

The MLB supports the MediaLB System Commands (e.g. MlbScan, MlbReset, MOST_Unlock). The MediaLB System
Status (MLB_MSS) Register is used to detect a System Command received from the MediaLB Controller
. The MLB
automatically sends the appropriate system response to the MediaLB Controller.
The procedure for the application is:
1. The application periodically polls the MLB_MSS register.
2. Clear by writing a ‘0’ to the appropriate bit in MLB_MSS register after the application finishes the service.
3. If MLB_MSS.SWSYSCMD = 1, read the MLB_MSD register to receive the system data sent from MediaLB
Controller.
48.6.4.3 Low Power Mode
MLB does not provide dedicated low power mode features.
In case the clocks of digital IP need to shut down to save power, the following operations are recommended before
entering low power mode:
• Finish any active MLB transfer
• Disable MLB (clear the MLBEN and MLBPEN bits in MLB_MLBC0)
• Disable HBI (clear all bits in MLB_HCMR0 and MLB_HCMR1, clear EN bit in MLB_HCTL)
• Mask AHB interrupts (clear all bits in MLB_ACMR0 and MLB_ACMR1)
For information on configuring the MLB IP if the clocks are re-enabled, see Section “Configure the Hardware”.
SAM E70/S70/V70/V71 Family
Media Local Bus (MLB)
©
2019 Microchip Technology Inc.
Datasheet
DS60001527D-page 1369