Intro to serial Com - MFET 374, Manufacturing Integration I...

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

View Full Document Right Arrow Icon

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

View Full DocumentRight Arrow Icon

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

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: MFET 374, Manufacturing Integration I 3/2/2010 Introduction to Serial Communications 1 MFET 374 Manufacturing Integration I Introduction to Introduction to Serial Communications Serial Communications Spring 10 T.E. Kostek Introduction to Serial Communications Topics Topics: Parallel Communications Serial Communications Asynchronous Serial Communications 2 MFET 374, Manufacturing Integration I 3/2/2010 Introduction to Serial Communications 2 Parallel Communications Parallel communications implies that n bits of data are transmitted simultaneously using n data lines. Transmitter (TX) Receiver (RX) D 1 D 2 D 3 3 (Ground and other required control lines not shown) D n Parallel Example, n = 8 bits Wire #1 Bit 1 = 1 Wire #2 Bit 2 = 0 Wire #2 Wire #3 Bit 3 = 1 Wire #4 Bit 4 = 0 Wire #5 Bit 5 = 0 Wire #6 Bit 6 = 1 4 Bit 8 = 1 Wire #7 Bit 7 = 0 Wire #8 Strobe MFET 374, Manufacturing Integration I 3/2/2010 Introduction to Serial Communications 3 Parallel Example, n = 8 bits The strobe signal (a TX output) transitions from off-to-on when the data lines carry valid data. When the strobe turns on, the receiving device reads the following data: 10100101 5 Least significant bit (LSB) Most significant bit (MSB) Serial Communications Serial communications implies that n bits of data are transmitted one bit at a time using 1 data line. Transmitter (TX) Receiver (RX) Data line 6 (Ground and other required control lines not shown) MFET 374, Manufacturing Integration I 3/2/2010 Introduction to Serial Communications 4 ASCII Codes Serial data is often coded in ASCII (A merican S tandard C ode for I nformation I nterchange) format Standard ASCII uses a 7-bit code to represent: 52 letters (A - Z, a - z) 10 numbers (0 - 9) Symbols/punctuation: 7 Space ! # $ % & ( ) * + , - . / : ; < = > ? @ [ \ ] ^ _ { | } ~ Control characters (e.g., NUL, ACK, ETX, etc.) Char Decimal Hex Char Decimal Hex Char Decimal Hex Char Decimal Hex NUL 00 SPACE 32 20 @ 64 40 96 60 SOH 1 01 ! 33 21 A 65 41 a 97 61 STX 2 02 34 22 B 66 42 b 98 62 ETX 3 03 # 35 23 C 67 43 c 99 63 EOT 4 04 $ 36 24 D 68 44 d 100 64 ENQ 5 05 % 37 25 E 69 45 e 101 65 ACK 6 06 & 38 26 F 70 46 f 102 66 BEL 7 07 39 27 G 71 47 g 103 67 BS 8 08 ( 40 28 H 72 48 h 104 68 The ASCII Character Set BS 8 08 ( 40 28 H 72 48 h 104 68 HT 9 09 ) 41 29 I 73 49 I 105 69 LF 10 0A * 42 2A J 74 4A j 106 6A VT 11 0B + 43 2B K 75 4B k 107 6B FF 12 0C , 44 2C L 76 4C l 108 6C CR 13 0D- 45 2D M 77 4D m 109 6D SO 14 0E . 46 2E N 78 4E n 110 6E SI 15 0F / 47 2F O 79 4F o 111 6F DLE 16 10 48 30 P 80 50 p 112 70 DC1 17 11 1 49 31 Q 81 51 q 113 71 DC2 18 12 2 50 32 R 82 52 r 114 72 DC3 19 13 3 51 33 S 83 53 s 115 73 DC4 20 14 4 52 34 T 84 54 t 116 74 NAK 21 15 5 53 35 U 85 55 u 117 75 8 SYN 22 16 6 54 36 V 86 56 v 118 76 ETB 23 17 7 55 37 W 87 57 w 119 77 CAN 24 18 8 56 38 X 88 58 x 120 78 EM 25 19 9 57 39 Y 89 59 y 121 79 SUB 26 1A : 58 3A Z 90 5A z 122 7A ESC 27 1B ;...
View Full Document

This note was uploaded on 02/29/2012 for the course MFET 374 taught by Professor T.e.kostek during the Spring '10 term at Purdue University-West Lafayette.

Page1 / 20

Intro to serial Com - MFET 374, Manufacturing Integration I...

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