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MTV030N View Datasheet(PDF) - Myson Century Inc

Part Name
Description
Manufacturer
MTV030N Datasheet PDF : 21 Pages
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MYSON
TECHNOLOGY
MTV030
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.
SSB
SCK
SDA
MSB
LSB
first byte
last byte
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 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.
SCK
SDA
B7
START
B6
first byte
B0
B7
B0
ACK
    
 
second byte
last byte
ACK
FIGURE 2. Data Transmission Protocol (I2C)
STOP
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
4/21
MTV030 Revision 1.0 10/15/1999
 

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