Electronic Components Datasheet Search
  New Zealand  ▼
ALLDATASHEET.CO.NZ

X  

Preview PDF HTML

ATmega64A Datasheet(PDF) 192 Page - ATMEL Corporation

Part # ATmega64A
Description  8-bit Microcontroller with 64K Bytes In-System Programmable Flash
PDF  392 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATmega64A Datasheet(HTML) 192 Page - ATMEL Corporation

Back Button ATmega64A Datasheet HTML 188Page - ATMEL Corporation ATmega64A Datasheet HTML 189Page - ATMEL Corporation ATmega64A Datasheet HTML 190Page - ATMEL Corporation ATmega64A Datasheet HTML 191Page - ATMEL Corporation ATmega64A Datasheet HTML 192Page - ATMEL Corporation ATmega64A Datasheet HTML 193Page - ATMEL Corporation ATmega64A Datasheet HTML 194Page - ATMEL Corporation ATmega64A Datasheet HTML 195Page - ATMEL Corporation ATmega64A Datasheet HTML 196Page - ATMEL Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 192 / 392 page
background image
192
8160C–AVR–07/09
ATmega64A
20.10 Examples of Baud Rate Setting
For standard crystal and resonator frequencies, the most commonly used baud rates for asyn-
chronous operation can be generated by using the UBRRn settings in Table 20-4 on page 192 to
Table 20-7 on page 195. UBRRn values which yield an actual baud rate differing less than 0.5%
from the target baud rate, are bold in the table. Higher error ratings are acceptable, but the
receiver will have less noise resistance when the error ratings are high, especially for large serial
frames (see “Asynchronous Operational Range” on page 189). The error values are calculated
using the following equation:
Error[%]
BaudRate
Closest Match
BaudRate
--------------------------------------------------------
1
–
⎝⎠
⎛⎞
100%
•
=
Table 20-4.
Examples of UBRR Settings for Commonly Used Oscillator Frequencies
Baud
Rate
(bps)
fosc = 1.0000 MHz
fosc = 1.8432 MHz
fosc = 2.0000 MHz
U2X = 0
U2X = 1
U2X = 0
U2X = 1
U2X = 0
U2X = 1
UBRRn
Error
UBRRn
Errorn
UBRRn
Error
UBRRn
Error
UBRRn
Error
UBRRn
Error
2400
25
0.2%
51
0.2%
47
0.0%
95
0.0%
51
0.2%
103
0.2%
4800
12
0.2%
25
0.2%
23
0.0%
47
0.0%
25
0.2%
51
0.2%
9600
6
-7.0%
12
0.2%
11
0.0%
23
0.0%
12
0.2%
25
0.2%
14.4k
3
8.5%
8
-3.5%
7
0.0%
15
0.0%
8
-3.5%
16
2.1%
19.2k
2
8.5%
6
-7.0%
5
0.0%
11
0.0%
6
-7.0%
12
0.2%
28.8k
1
8.5%
3
8.5%
3
0.0%
7
0.0%
3
8.5%
8
-3.5%
38.4k
1
-18.6%
2
8.5%
2
0.0%
5
0.0%
2
8.5%
6
-7.0%
57.6k
0
8.5%
1
8.5%
1
0.0%
3
0.0%
1
8.5%
3
8.5%
76.8k
–
–
1
-18.6%
1
-25.0%
2
0.0%
1
-18.6%
2
8.5%
115.2k
–
–
0
8.5%
0
0.0%
1
0.0%
0
8.5%
1
8.5%
230.4k
–
––
–––
0
0.0%
–
––
–
250k
–
––
–––
–
–
–
–0
0.0%
Max (1)
62.5 kbps
125 kbps
115.2 kbps
230.4 kbps
125 kbps
250 kbps
1.
UBRR = 0, Error = 0.0%



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com