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參數(shù)資料
| 型號： | MTV118 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | On-Screen-Display for LCD Monitor |
| 中文描述： | 屏幕為液晶顯示器面板 |
| 文件頁數(shù)： | 4/30頁 |
| 文件大小： | 291K |
| 代理商： | MTV118 |
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4/15
MTV118 Revision 2.0 01/01/1999
MTV118
MYSON
TECHNOLOGY
3.1.2 I
2
C Bus
I
2
C bus operation is only selected when the SSB pin is left floating. A valid transmission should begin
from writing the slave address 7AH, which is mask option, to MTV118. The protocol is shown in Figure
2 on page 4..
There are 3 transmission formats as shown below:
Format (a) S - R - C - D
→
R - C - D
→
R - C - D
Format (b) S - R - C - D
→
C - D
→
C - D
→
C - D
Format (c) S - R - C - D
→
D
→
D
→
D
→
D
→
D
S=slave address, R=row address, C=column address, D=display data
Each arbitrary length of data packet consists of 3 portions: row address (R), column address (C) and
display data (D). Format (a) is suitable for updating small amounts of data which will be allocated with
different row and column addresses. Format (b) is recommended for updating data that has the same
row address but a different column address. Massive data updating or full screen data changes should
be done in format (c) to increase transmission efficiency. The row and column addresses will be incre-
mented automatically when format (c) is applied. Furthermore, the undefined locations in display or font
RAM should be filled with dummy data.
There are 3 types of data which should be accessed through the serial data interface: address bytes of
display registers, attribute bytes of display registers and user font RAM data. The protocol is the same
for all except bits 5 and 6 of the row addresses. The MSB(b7) is used to distinguish row and column
addresses when transferring data from an external controller. Bit 6 of the row address is used to distin-
guish display registers and user font RAM data and bit6 of the column address is used to differentiate
the column address for formats (a), (b) and (c), respectively. Bit 5 of the row address for display regis-
ters is used to distinguish the address byte when it is set to "0" and the attribute byte when it is set to
"1". The configuration of transmission formats is shown in Table 1 on page 5.
MS
B
LSB
SSB
SCK
SDA
first byte
last byte
FIGURE 1. Data Transmission Protocol (SPI)
FIGURE 2. Data Transmission Protocol (I
2
C)
SCK
SDA
first byte
@ @ @ @
@
START
ACK
second byte
last byte
ACK
STOP
B7
B6
B0
B7
B0
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MTV1-18PH025-1 | 制造商:ITT Interconnect Solutions 功能描述:MTV1-18PH025-1 - Bulk |
| MTV1-18PH025-2 | 制造商:ITT Interconnect Solutions 功能描述:MTV1-18PH025-2 - Bulk |
| MTV1-18PH3 | 制造商:ITT Interconnect Solutions 功能描述:MTV1-18PH3 / 097444-0015 / Micro |
| MTV1-18PL1 | 制造商:ITT Interconnect Solutions 功能描述:MTV1-18PL1 - Bulk |
| MTV1-18PS1 | 制造商:ITT Interconnect Solutions 功能描述:MTV1-18PS1 - Bulk |
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