lecNew-15-SPI

lecNew-15-SPI - WPI ECE2801 Foundations of Embedded...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
WPI ECE2801 Foundations of Embedded Computer Systems Lecture 15: USART Peripheral Interface
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
EE2801: Foundations of Embedded Systems Lecture 15 MSP430F449 Peripherals 6 Digital I/O Ports FLL/System Clock module 4 Timers ADC (8 channel 12 BIT) 2 USARTs (SPI) Op amps Comparator Flash memory controller LCD Controller DMA controller Hardware Multiplier
Background image of page 2
EE2801: Foundations of Embedded Systems Lecture 15 Communication Interfaces Parallel interfaces Sending data several bits at one time over a communication link. Each bit has its own electrical connection (interconnect, trace, wire) Advantage: fast, easier to synchronize (one clock edge transfer all bits together) Disadvantage: each bit must have its own electrical connection (too many pins for I/O) Used almost exclusively inside a CPU (or other) chip
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
EE2801: Foundations of Embedded Systems Lecture 15 Communication Interfaces Serial Interfaces Sending data one bit at one time Used almost exclusively to make connections off-chip (and off-computer, through the Internet, long-haul communications, etc) Advantages: Simpler/fewer connections Connection” : PCB trace, wire, RF, acoustic, optical, etc. Disadvantages: “slower”, more
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 10/12/2009 for the course ECE 2801 taught by Professor Jarvis during the Spring '08 term at WPI.

Page1 / 15

lecNew-15-SPI - WPI ECE2801 Foundations of Embedded...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online