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MTV030 データシート(PDF) 4 Page - List of Unclassifed Manufacturers |
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MTV030 データシート(HTML) 4 Page - List of Unclassifed Manufacturers |
4 / 21 page 4/21 MTV030 Revision 1.0 10/15/1999 MTV030 MYSON TECHNOLOGY 3.0 FUNCTIONAL DESCRIPTIONS 3.1 SERIAL DATA INTERFACE The serial data interface receives data transmitted from an external controller. And there are 2 types of bus can be accessed through the serial data interface, one is SPI bus and other is I2C 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 be starting from pulling SSB to "low" level, enabling MTV030 to receiving mode, and retain "low" level until the last cycle for a complete data packet transfer. The protocol is shown in Figure 1. 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 I2C bus I2C bus operation is only selected when SSB pin is left floating. And a valid transmission should be starting from writing the slave address 7AH(write mode), or 7BH(read mode) to MTV030. The protocol is shown in Figure 2. And the auto sizing video measurement data (total 10 bytes) are read only registers and the others are write only registers. There are three transmission formats for I2C write mode shown as 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 ..... Where S=Slave address, R=Row address, C=Column address, D=Display data And there is one transmission format for I2C read mode shown as below: Format (a) S → D → D → D → D → D → D → D → D → D → D → dummy D → dummy D ..... Where S=Slave address, D=Measurement data MSB LSB SSB SCK SDA first byte last byte FIGURE 1. Data Transmission Protocol (SPI) FIGURE 2. Data Transmission Protocol (I2C) SCK SDA first byte START ACK second byte last byte ACK STOP B7 B6 B0 B7 B0 |
同様の部品番号 - MTV030 |
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同様の説明 - MTV030 |
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