Cirrus Logic EP93 Series User Manual page 622

IrDA
EP93xx User's Guide
Bit Descriptions:
17
IrFlag
31 30
15 14
Address:
Default:
Definition:
Bit Descriptions:
17-26
address of all ones are broadcast frames, and are always matched regardless
of the value in the AMV. The AMV may be written at any time, allowing the
address match value to be changed during active receive operation.
RSVD:
AMV:
29 28 27 26
13 12 11 10
RSVD
0x808B_008B - Read Only
0x0000_0000
IrDA Flag Register. Contains the nine read only flags which indicate the
current state of the IrDA Interface.
RSVD:
TBY:
RIF:
RSY:
EOF:
Copyright 2007 Cirrus Logic
Reserved. Unknown During Read.
Address Match Value.
25 24 23 22
RSVD
9 8 7 6
TBY RIF RSY EOF
Reserved. Unknown During Read.
Transmitter Busy Flag.
0 - Transmitter is idle, or disabled, or an abort is being
transmitted.
1 - Transmit logic is currently transmitting a frame.
Receiver In Frame.
0 - Receiver is in preamble/start flag or is in hunt mode.
1 - Receiver is in a frame.
Receiver Synchronized Flag.
0 - Receiver is in hunt mode.
1 - Receiver logic is synchronized within the incoming
data.
End of Frame.
0 - Current frame is not completed.
1 - The word in the receive buffer contains the last byte of
data within the frame. When the last word in the current
frame is read this bit is cleared.
21 20 19 18
5 4 3 2
WST WST FRE ROR
17 16
1 0
CRE RAB
DS785UM1