Analog Devices ADSP-21261 SHARC Hardware Reference Manual page 407

• 1 = SPORT is configured to transmit on both channels A and B. In
this configuration, the
while the Transmit Shift registers are controlled by
SPORTx_FS
This bit applies to I
Serial modes.

Reading from or writing to inactive buffers cause the core to hang
indefinitely until the SPORT is cleared.
Data Buffer Error Status (sticky, read-only).
). These bits indicate whether the serial transmit operation has under-
TUVF
flowed (if set, = 1 and
set, = 1 and
SPTRAN
buffers.
This description applies to I
dard Serial modes. In multichannel modes, corresponding bits (
) are used for this function.
ROVF
When the SPORT is configured as a transmitter, this bit provides transmit
underflow status. As a transmitter, if
the
SPORTx_FS
the buffer was empty. If
DXS
SPORT is required to transmit and the transmit buffer is empty. The
SPORTs transmit data whenever they detect a
• 0 = No
• 1 =
SPORTx_FS
ADSP-2126x SHARC Processor Hardware Reference
TXSPxA
. The and
RXSPxA
2
S, Left-justified Sample Pair, and DSP Standard
= 1) or a receive operation has overflowed (if
SPTRAN
= 0) in the
TXSPxA/RXSPxA
2
S, Left-justified Sample Pair, and DSP Stan-
signal (from an internal or external source) occurred while
FSR
signal occurred while
SPORTx_FS
signal occurred while
and buffers are activated,
TXSPxB
buffers are inactive.
RXSPxB
SPCTLx
and
= 1, this bit indicates whether
FSR
= 0, or is set whenever the
ROVF TUVF
SPORTx_FS
TXSPxA/B
TXSPxA/B
Serial Ports
SPORTx_CLK
bit 29 and 26 (
ROVF
data
TXSPxB/RXSPxB
,
TUVF
signal.
buffer is empty.
buffer is empty.
and
,
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