Cirrus Logic EP73xx User Manual

Page 141

EP7309/11/12 User’s Manual - DS508UM4

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Copyright Cirrus Logic, Inc. 2003

DAI/CODEC/SSI2

1616

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