数据搜索系统，热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

预览 PDF HTML

AT89C5122DS-RDRUM 数据表(PDF) 132 Page - ATMEL Corporation

部件名 AT89C5122DS-RDRUM
功能描述  C51 Microcontroller with USB and Smart Card Reader Interfaces
PDF  208 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  ATMEL [ATMEL Corporation]
网页  http://www.atmel.com
标志 ATMEL - ATMEL Corporation

AT89C5122DS-RDRUM 数据表(HTML) 132 Page - ATMEL Corporation

Back Button AT89C5122DS-RDRUM Datasheet HTML 128Page - ATMEL Corporation AT89C5122DS-RDRUM Datasheet HTML 129Page - ATMEL Corporation AT89C5122DS-RDRUM Datasheet HTML 130Page - ATMEL Corporation AT89C5122DS-RDRUM Datasheet HTML 131Page - ATMEL Corporation AT89C5122DS-RDRUM Datasheet HTML 132Page - ATMEL Corporation AT89C5122DS-RDRUM Datasheet HTML 133Page - ATMEL Corporation AT89C5122DS-RDRUM Datasheet HTML 134Page - ATMEL Corporation AT89C5122DS-RDRUM Datasheet HTML 135Page - ATMEL Corporation AT89C5122DS-RDRUM Datasheet HTML 136Page - ATMEL Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 132 / 208 page
background image
132
AT83R5122, AT8xC5122/23
4202F–SCR–07/2008
Baud Rate Selection (Mode 2)
In mode 2, the baud rate can only be programmed to two fixed values: 1/16 or 1/32 of
the peripheral clock frequency.
As shown in Figure 80 the selection is done using SMOD1 bit in PCON register.
Figure 81 gives the baud rate calculation formula depending on the selection.
Figure 80.
Baud Rate Generator Selection (Mode 2)
Figure 81.
Baud Rate Formula (Mode 2)
For mode 0 for UART, thanks to the bit M0SRC located in BDRCON register (Table 82)
Table 76.
Internal Baud Rate Generator Value
Baud Rate
F
CK_IDLE= 4 MHz
F
CK_IDLE= 8 MHz
F
CK_IDLE= 9.6 MHz
SPD
SMOD1
BRL
Error%
SPD
SMOD1
BRL
Error%
SPD
SMOD1
BRL
Error%
115200
1
1
254
8.51
1
1
252
8.51
1
1
251
4.17
57600
1
1
252
8.51
1
1
247
3.55
1
1
246
4.17
38400
1
1
249
6.99
1
1
243
0.16
1
1
240
2.34
19200
1
1
243
0.16
1
1
230
0.16
1
1
225
0.81
9600
1
1
230
0.16
1
1
204
0.16
1
1
194
0.81
4800
1
1
204
0.16
1
1
152
0.16
1
1
131
0.00
Baud Rate
F
CK_IDLE= 12 MHz
F
CK_IDLE= 16 MHz
F
CK_IDLE= 24 MHz
SPD
SMOD1
BRL
Error%
SPD
SMOD1
BRL
Error%
SPD
SMOD1
BRL
Error%
115200
1
1
249
6.99
1
1
247
3.55
1
1
243
0.16
57600
1
1
243
0.16
1
1
239
2.12
1
1
230
0.16
38400
1
1
236
2.34
1
1
230
0.16
1
1
217
0.16
19200
1
1
217
0.16
1
1
204
0.16
1
1
178
0.16
9600
1
1
178
0.16
1
1
152
0.16
1
1
100
0.16
4800
1
1
100
0.16
1
1
48
0.16
1
1
N/A
N/A
1
0
SMOD1
PCON.7
CK_
SI
x2
/32
To Serial Port
Baud_Rate =
32
2
SMOD1
⋅ F
CK_SI



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


数据表 下载

Go To PDF Page


链接网址



ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   数据表链接    |   链接交换   |   制造商名单
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