Analog Devices SHARC ADSP-214 Series Hardware Reference Manual page 461

unidirectional streams into or out of the same serial port. This
bidirectional functionality provides greater flexibility for serial
communications. Further, two SPORTs can be combined to enable
full-duplex, dual-stream communications.
Serial ports can operate at a maximum of one-fourth the peripheral
clock rate of the processor. If channels A and B are active, each
SPORT has a maximum throughput of 2 x
• Chained DMA operations for multiple data blocks, see
Chaining" on page
• DMA Chain insertion mode allows the SPORTs to change DMA
priority during chaining, see
on page
• Data words between 3 and 32 bits in length, either most significant
bit (MSB) first or least significant bit (LSB) first. Words must be
between 8 and 32 bits in length for I
• 128-channel multichannel is supported in multichannel mode
operation, useful for H.100/H.110 and other telephony interfaces
described in
• μ-law and A-law compression/decompression hardware compand-
ing on transmitted and received words when the SPORT operates
in multichannel mode.

Receive comparison and 2-dimensional DMA are not supported.
ADSP-214xx SHARC Processor Hardware Reference
www.BDTIC.com/ADI
2-32.
10-56.
"Multichannel Mode" on page
PCLK
"Enter DMA Chain Insertion Mode"
2
S and left-justified mode.
10-31.
Serial Ports
/4 rate.
"DMA
10-3