Datenblatt-Suchmaschine für elektronische Bauteile |
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MTV048 Datenblatt(PDF) 3 Page - List of Unclassifed Manufacturers |
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MTV048 Datenblatt(HTML) 3 Page - List of Unclassifed Manufacturers |
3 / 19 page MYSON TECHNOLOGY MTV048 (Rev 0.9) Rev 0.9 - 3 - 2001/03/15 V33CAP I/O 11 3.3V Regulator Capacitor connection. Connect a decoupling capacitor to VSS pin when DC supply = 5V, or connect to 3.3V directly when DC supply = 3.3V. FBKG O 12 Fast Blanking output. It is used to cut off external R, G, B signals of VGA while this chip is displaying characters or windows. BOUT O 13 Blue color output. It is a blue color video signal output. And it is a DAC output if bit LCD = 0 or CMOS output if bit LCD =1. GOUT O 14 Green color output. It is a green color video signal output. And it is a DAC output if bit LCD = 0 or CMOS output if bit LCD =1. ROUT O 15 Red color output. It is a red color video signal output. And it is a DAC output if bit LCD = 0 or CMOS output if bit LCD =1. VSS - 16 Digital ground. This ground pin is used for internal digital circuitry. 3.0 FUNCTIONAL DESCRIPTIONS 3.1 Serial Data Interface The serial data interface receives data transmitted from an external controller. There are 2 types of buses, which can be accessed through the serial data interface. One is SPI bus and the other is I 2C bus. 3.1.1 SPI bus While SSB pin is pulled to "high" or "low" level, the SPI bus operation is selected. And a valid transmission should start pulling SSB to "low" level, enabling MTV048 to receiving mode, and retain at "low" level till the last cycle for a complete data packet transfer. The protocol is shown in Figure 1. FIGURE 1. Data Transmission Protocol (SPI) There are three transmission formats, shown as below: Format (a) R - C - D → R - C - D → R - C - D … .. Format (b) R - C - D → C - D → C - D → C - D … .. Format (c) R - C - D → D → D → D → D → D … .. Where R=Row address, C=Column address, D=Display data 3.1.2 I 2C bus I 2C bus operation is only selected when SSB pin is left floating. And a valid transmission should start writing the slave address 7AH to MTV048. The protocol is shown in Figure 2. First byte Last byte SSB SCK SDA MSB LSB |
Ähnliche Teilenummer - MTV048 |
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Ähnliche Beschreibung - MTV048 |
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