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ADSP-BF548 Processor I/O Peripherals
3-2 Getting Started with ADSP-BF548 EZ-KIT Lite
ADSP-BF548 Processor I/O Peripherals
The ADSP-BF548 processor’s I/O controllers and peripherals fall into
four categories:
1. Serial data interfaces
• Two-wire interface (TWI). A TWI interface is compatible
with the widely-used I
2
C bus standard. The processor sup-
ports up to two TWI interfaces.
• Serial peripheral interface (SPI) bus standard. The proces-
sor supports up to three SPI interfaces.
• Synchronous serial port (SPORT). This is a powerful
serial port containing two sets of input/output pins that can
operate in I
2
S mode and has eight-deep receive and transmit
buffers. A SPORT offers considerable control over word
length and framing options. The processor can support up
to four SPORT interfaces.
• Full-duplex universal asynchronous receiver/transmitter
(UART) interface. With external voltage level shifters, the
interface can provide RS-232 style communications. The
processor can support up to four UART interfaces.
• Universal Serial Bus (USB) 2.0 controller. The controller
operates in device or host (on-the-go) mode at low, full, or
high speed. The processor has one USB controller.
2. Parallel data interfaces
• Enhanced parallel peripheral interface (EPPI). An EPPI
supports direct connection of LCD panels, parallel ana-
log-to-digital (A/D) and digital-to-analog (D/A) converters,