Cirrus Logic EP73xx User Manual
Page 141
EP7309/11/12 User’s Manual - DS508UM4
16-17
Copyright Cirrus Logic, Inc. 2003
DAI/CODEC/SSI2
1616
16
LCTS:
Left Channel Transmit FIFO Service Request Flag (read only)
0 - Left Channel Transmit FIFO is more than half full (five entries
or more are filled) or DAI is disabled.
1- Left Channel Transmit FIFO is more than half full or less (four
or fewer entries filled) and the DAI operation is enabled.
LTCM = 1.
LCRS:
Left Channel Receive FIFO Service Request Flag (read only)
0 - Left Channel Receive FIFO is more than half full (five entries or
fewer are filled) or DAI is disabled.
1- Left Channel Receive FIFO is more than half full or less (six or
mote entries filled) and the DAI operation is enabled. LCRM = 1.
RCTU:
Right Channel Transmit FIFO Underrun
0 - Right Channel Transmit FIFO has not experienced an underrun
1 - Right Channel Transmit logic attempted to fetch data from
transmit FIFO while it was empty, request interrupt.
RCRO:
Right Channel Transmit FIFO Overrun
0 - Right Channel Transmit FIFO has not experienced an overrun
1 - Right Channel Transmit logic attempted to fetch data from
transmit FIFO while it was full, request interrupt.
LCTU:
Left Channel Transmit FIFO Underrun
0 - Left Channel Transmit FIFO has not experienced an underrun
1 - Left Channel Transmit logic attempted to fetch data from
transmit FIFO while it was empty, request interrupt
LCRO:
Left Channel Transmit FIFO Overrun
0 - Left Channel Transmit FIFO has not experienced an overrun
1 - Left Channel Transmit logic attempted to fetch data from
transmit FIFO while it was full, request interrupt.
RCNF:
Right Channel Transmit FIFO Not Full (read only)
0 - Right Channel Transmit FIFO is full
1 - Right Channel Transmit FIFO is not full
RCNE:
Right Channel Transmit FIFO Not Full (read only)
0 - Right Channel Transmit FIFO is empty
1 - Right Channel Transmit FIFO is not empty
LCNF:
Left Channel Transmit FIFO Not Full (read only)
0 - Left Channel Transmit FIFO is full
1 - Left Channel Transmit FIFO is not full
LCNE:
Left Channel Transmit FIFO Not Full (read only)
0 - Left Channel Transmit FIFO is empty
1 - Left Channel Transmit FIFO is not empty
FIFO:
FIFO Operation Completed (read only)
0 - FIFO operation has not completed since the last time this bit
was cleared
1 - FIFO operation was completed