CHSTATUSn

Channel n Status

Important: For SAM L11 Non-Secure accesses, read accesses (R*) are allowed only if the security attribution for the corresponding channel (CHANNELx) is set as Non-Secured in the NONSECCHAN register.
  0x27 + n*0x08 [n=0..3] 8 Mix-Secure 0x01     4 8 -1
Parent topic: Register Description

Channel n Status

Bit  7 6 5 4 3 2 1 0  
              BUSYCH RDYUSR  
Access              R/R*/R R/R*/R  
Reset              0 0  

Bit 1 – BUSYCH: Busy Channel

Busy Channel

This bit is cleared when channel is idle.

This bit is set if an event on channel has not been handled by all event users connected to channel.

When the event channel path is asynchronous, this bit is always read '0'.

Bit 0 – RDYUSR: Ready User

Ready User

This bit is cleared when at least one of the event users connected to the channel is not ready.

This bit is set when all event users connected to channel are ready to handle incoming events on the channel.

When the event channel path is asynchronous, this bit is always read zero.