công cụ tìm kiếm bảng dữ liệu linh kiện điện tử
  Vietnamese  ▼
ALLDATASHEET.VN

X  

MC141541P bảng dữ liệu(PDF) 5 Page - Motorola, Inc

tên linh kiện MC141541P
Giải thích chi tiết về linh kiện  Enhanced Monitor On-Screen Display
Download  16 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  MOTOROLA [Motorola, Inc]
Trang chủ  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

MC141541P bảng dữ liệu(HTML) 5 Page - Motorola, Inc

  MC141541P Datasheet HTML 1Page - Motorola, Inc MC141541P Datasheet HTML 2Page - Motorola, Inc MC141541P Datasheet HTML 3Page - Motorola, Inc MC141541P Datasheet HTML 4Page - Motorola, Inc MC141541P Datasheet HTML 5Page - Motorola, Inc MC141541P Datasheet HTML 6Page - Motorola, Inc MC141541P Datasheet HTML 7Page - Motorola, Inc MC141541P Datasheet HTML 8Page - Motorola, Inc MC141541P Datasheet HTML 9Page - Motorola, Inc Next Button
Zoom Inzoom in Zoom Outzoom out
 5 / 16 page
background image
MC141541
5
MOTOROLA
The bottom half of the Block Diagram contains the hard-
ware functions for the entire system. It performs all the
EMOSD functions such as programmable vertical length
(from 16 lines to 63 lines), display clock generation (which is
phase locked to the incoming horizontal sync signal at Pin 5
HFLB), bordering or shadowing, and multiple windowing.
COMMUNICATION PROTOCOLS
M_BUS Serial Communication
This is a two–wire serial communication link that is fully
compatible with the IIC bus system. It consists of an SDA bi-
directional data line and an SCL clock input line. Data is sent
from a transmitter (master) to a receiver (slave) via the SDA
line, and is synchronized with a transmitter clock on the SCL
line at the receiving end. The maximum data rate is limited to
100 kbps and the default chip address is $7A, but is hard-
ware changeable by mask set.
Operating Procedure
Figure 2 shows the M_BUS transmission format. The mas-
ter initiates a transmission routine by generating a start
condition followed by a slave address byte. Once the ad-
dress is properly identified, the slave will respond with an ac-
knowledge signal by pulling the SDA line low during the ninth
SCL clock. Each data byte that follows must be eight bits
long, plus the acknowledge bit, for a total of nine bits. Ap-
propriate row and column address information and display
data can be downloaded sequentially in one of the three
transmission formats described in the Data Transmission
Formats section. In the cases of no acknowlege or comple-
tion of data transfer, the master will generate a stop condition
to terminate the transmission routine. Note that the OSD_EN
bit must be set after all the display information has been sent,
in order to activate the EMOSD circuitry of MC141541 so that
the received information can be displayed.
DATA BYTES
ACK
STOP CONDITION
ACK
CHIP ADDRESS
SDA
SCL
START CONDITION
1
9
8
2–7
Figure 2. M_BUS Format
DATA TRANSMISSION FORMATS
In this enhanced version MOSD, both display RAM, con-
trol registers, and character RAM fonts need to be pro-
grammed after power–on. The arrangement of the display
RAM and control registers is on the row–column basis, while
the character RAM is on the segment–line basis. Although
the address basis is different, the data downloading proto-
cols are very similar and will be described in the following
sections.
Display RAM and Control Registers
After the proper identification by the receiving device, a
data train of arbitrary length is transmitted from the master.
There are three transmission formats from (a) to (c) as stated
below. The data train in each sequence consists of row ad-
dress (R), column address (C), and display information (I), as
shown in Figure 3. In format (a), display information data
must be preceded with the corresponding row address and
column address. This format is particularly suitable for updat-
ing small amounts of data between different rows. However,
if the current information byte has the same row address as
the one before, format (b) is recommended.
row addr
col addr
info
Figure 3. Data Packet
For a full–screen pattern change that requires a massive
information update, or during power–up, most of the row and
column addresses of either (a) or (b) formats will be consec-
utive. Therefore, a more efficient data transmission format (c)
should be applied. This sends the RAM starting row and col-
umn addresses once only, and then treats all subsequent
data as display information. The row and column addresses
will be automatically incremented internally for each display
information data from the starting location.
The data transmission formats are:
(a) R – > C – > I – > R – > C – > I – > . . . . . . . . .
(b) R – > C – > I – > C – > I – > C – > I. . . . . . .
(c) R – > C – > I – > I – > I – > . . . . . . . . . . . . .
To differentiate the row and column addresses when trans-
ferring data from master, the MSB (most significant bit) is set,
as in Figure 4: ‘1’ to represent row, and ‘0’ for column ad-
dress. Furthermore, to distinguish the column address be-
tween formats (a), (b), and (c), the sixth bit of the column
address is set to ‘1’ which represents format (c), and ‘0’ for
format (a) or (b). However, there is some limitation on using
mixed formats during a single transmission. It is permissible
to change the format from (a) to (b), or from (a) to (c), or from
(b) to (a), but not from (c) back to (a) or (b).
ADDRESS
ROW
COLUMN
COLUMN
X: don’t care
D: valid data
FORMAT
BIT
0
1
2
3
4
5
6
7
D
D
D
D
X
X
X
1
D
D
D
D
D
X
0
0
D
D
D
D
D
X
1
0
a, b
a, b, c
c
Figure 4. Row & Column Address Bit Patterns
Character RAM
The structure of eight character RAM fonts is shown in Fig-
ure 5. They occupy the font number from 0 to 7. Because of
the 10 x 16 dot matrix font, each font is broken down into two
segments in the horizontal direction and 16 lines in the verti-
cal direction. Therefore, there are five dots that need to be
defined for each specified segment–line location. This 5–bit
data forms the lower five bits of the information data byte and
the higher three bits are ignored. Because there are 16 seg-
ments (two segments per font) and 16 lines, both the seg-
ment and line addresses are four bits wide.


Số phần tương tự - MC141541P

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
Motorola, Inc
MC141540 MOTOROLA-MC141540 Datasheet
190Kb / 12P
   Monitor on-Screen Display
MC141540P4 MOTOROLA-MC141540P4 Datasheet
190Kb / 12P
   Monitor on-Screen Display
MC141543 MOTOROLA-MC141543 Datasheet
472Kb / 14P
   Advanced Monitor On-Screen Display
MC141543P MOTOROLA-MC141543P Datasheet
472Kb / 14P
   Advanced Monitor On-Screen Display
More results

Mô tả tương tự - MC141541P

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
List of Unclassifed Man...
WT6801 ETC2-WT6801 Datasheet
64Kb / 3P
   Monitor On-Screen Display
WT6805 ETC2-WT6805 Datasheet
35Kb / 3P
   Monitor On-Screen Display
logo
Motorola, Inc
MC141540 MOTOROLA-MC141540 Datasheet
190Kb / 12P
   Monitor on-Screen Display
logo
List of Unclassifed Man...
WT6804 ETC1-WT6804 Datasheet
37Kb / 3P
   Monitor On-Screen Display
MTV016 ETC-MTV016 Datasheet
104Kb / 11P
   Enhanced On-Screen-Display Controller
logo
Motorola, Inc
MC141543 MOTOROLA-MC141543 Datasheet
472Kb / 14P
   Advanced Monitor On-Screen Display
logo
List of Unclassifed Man...
MTV021 ETC-MTV021 Datasheet
205Kb / 17P
   Enhanced Super On-Screen Display
logo
STMicroelectronics
STV9420 STMICROELECTRONICS-STV9420 Datasheet
228Kb / 16P
   MULTISYNC ON-SCREEN DISPLAY FOR MONITOR
logo
List of Unclassifed Man...
MTV130 ETC2-MTV130 Datasheet
347Kb / 18P
   On-Screen Display for LCD Monitor
logo
STMicroelectronics
STV9422 STMICROELECTRONICS-STV9422 Datasheet
232Kb / 15P
   MULTISYNC ON-SCREEN DISPLAY FOR MONITOR
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16


bảng dữ liệu tải về

Go To PDF Page


Link URL




Chính sách bảo mật
ALLDATASHEET.VN
Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không?  [ DONATE ] 

Alldatasheet là   |   Quảng cáo   |   Liên lạc với chúng tôi   |   Chính sách bảo mật   |   Trao đổi link   |   Tìm kiếm theo nhà sản xuất
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