数据搜索系统,热门电子元器件搜索
  Chinese▼

Delete All
ON OFF
ALLDATASHEETCN.COM

X  

预览 PDF Download HTML

TOIM4232 Datasheet(数据表) 5 Page - Vishay Siliconix

部件型号  TOIM4232
说明  SIR Endec for IrDA Applications Integrated Interface Circuit
下载  14 Pages
Scroll/Zoom Zoom In 100% Zoom Out
制造商  VISHAY [Vishay Siliconix]
网页  http://www.vishay.com
标志 VISHAY - Vishay Siliconix

TOIM4232 Datasheet(HTML) 5 Page - Vishay Siliconix

  TOIM4232 数据表 HTML 1Page - Vishay Siliconix TOIM4232 数据表 HTML 2Page - Vishay Siliconix TOIM4232 数据表 HTML 3Page - Vishay Siliconix TOIM4232 数据表 HTML 4Page - Vishay Siliconix TOIM4232 数据表 HTML 5Page - Vishay Siliconix TOIM4232 数据表 HTML 6Page - Vishay Siliconix TOIM4232 数据表 HTML 7Page - Vishay Siliconix TOIM4232 数据表 HTML 8Page - Vishay Siliconix TOIM4232 数据表 HTML 9Page - Vishay Siliconix Next Button
Zoom Inzoom in Zoom Outzoom out
 5 page
background image
TOIM4232
Document Number 82546
Rev. 1.5, 06-Jun-06
Vishay Semiconductors
www.vishay.com
5
Baud Rate Select Words
Note: IrDA standard only supports 2.4, 9.6, 19.2, 57.6, and 115.2 kbit/s.
Software for the TOIM4232
UART Programming
For proper operation, the RS232 must be programmed (using 8 bit, 1 stop, no parity) to send a two character control word, YZ. The control
word YZ is composed of two characters, written in hexadecimal, in format: YZ. The transfer rate for programming must be identical with
the formerly programmed data rate, or after resetting the TOIM4232, the default rate of 9600 bit/s is used.
*) For programming the UART, refer to e.g., National Semiconductor’s data sheet of PC 16550 UART
B3
B2
B1
B0
2nd
Char
Baud Rate
00
00
0
115.2 k
00
11
57.6 k
01
02
38.4 k
01
13
19.2 k
10
04
14.4 k
10
15
12.8 k
11
06
9.6 k
11
17
7.2 k
10
00
8
4.8 k
00
19
3.6 k
01
0
A
2.4 k
01
1
B
1.8 k
10
0
C
1.2 k
10
1
D
forbidden
11
0
E
forbidden
11
1
F
forbidden
Step.
RESET
BR/ D
TD_UART
RD_UART
RD_IR
TD_IR
Description and Comments
1
High
XXXX
X
Resets all internal registers. Resets to
IrDA default data rate of 9600 bit/s
2
Low
XXXX
X
Wait at least 2 ms, to allow start-up of
internal clock. When external clock is
used: Wait at least 7 µs.
3
Low
High
X
X
X
X
Wait at least 7 µs. TOIM4232 now is set
to the Control Word programming mode
4Low
High
YZ
with Y = 1
for 1.627 µs
Y = 0
3/16 bit
length
X
X
X
Sending the Control Word YZ.
Examples: Send "1Z" if 1.627 µs pulses
are intended to be used. Otherwise
send "0Z" for 3/16 bit period pulses.
"Y6" keeps the 9.6 kbit/s data rate.
Z = 0 sets to 115.2 kbit/s, see
programming table.
Wait at least 1 µs for hold-time.
5
Low
Low
DATA
DATA
DATA
DATA
With BR/D = 0, TOIM4232 is in the data
communication mode. Both RESET
and BR/D must be kept LOW ("0")
during data transmission.
Reprogramming to a new data rate can
be resumed by restarting from step 3.
The UART itself also must set to the
correct data rate *).




HTML 页

1  2  3  4  5  6  7  8  9  10  11  12  13  14 


数据表 下载

Go To PDF Page


链接网址


Privacy Policy
ALLDATASHEETCN.COM
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   |   书签   |   链接交换   |   制造商名单
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  , 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