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參數(shù)資料
| 型號： | S6A0078 |
| 元件分類： | 顯示控制器 |
| 英文描述： | 34 X 120 DOTS DOT MAT LCD DRVR AND DSPL CTLR, UUC183 |
| 封裝： | DIE-183 |
| 文件頁數(shù)： | 39/68頁 |
| 文件大?。?/td> | 328K |
| 代理商： | S6A0078 |
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S6A0078
34COM/120SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD
44
INTERFACE WITH MPU IN SERIAL MODE
When IM port input is "Low", serial interface mode is started. At this time, all three ports, SCLK (synchronizing
transfer clock), SID (serial input data), and SOD (serial output data), are used. If you want to use S6A0078 with other
chips, chip select port (CS) can be used. By setting CS to "Low", S6A0078 can receive SCLK input. If CS is set to
"High", S6A0078 reset the internal transfer counter.
Before transfer real data, start byte has to be transferred. It is composed of succeeding 5 "High" bits, register
selection bit (RS), read write control bit (R/W), and end bit that indicates the end of start byte. Whenever succeeding
5 "High" bits are detected by S6A0078, it makes serial transfer counter reset and ready to receive next information.
The next input data are register selection bit that determine which register will be used, and read write control bit that
determine the direction of data. Then end bit is transferred, which must have "Low" value to show the end of start
byte. (refer to Figure 13, Figure 14)
Write Operation (R/W = 0)
After start byte is transferred from MPU to S6A0078, 8-bit data is transferred which is divided into 2 bytes, each byte
has 4 bit's real data and 4 bit's partition token data. For example, if real data is "10110001" (D0 - D7), then serially
transferred data becomes "1011 0000 0001 0000" where 2nd and 4th 4 bits must be "0000" for safe transfer.
To transfer several bytes continuously without changing RS bit and RW bit, start byte transfer is needed only at first
starting time. Namely, after first start byte is transferred, real data can be transferred succeeding.
Read Operation (R/W = 1)
After start byte is transferred to S6A0078, MPU can receive 8-bit data through the SOD port at a time from the LSB.
Wait time is needed to insert between start byte and data reading, because internal reading from RAM requires
some delay. Continuous data reading is possible like serial write operation. It also needs only one start bytes, only if
you insert some delay between reading operations of each byte. During the reading operation, S6A0078 observes
succeeding 5 "High" from MPU. If it is detected, S6A0078 restarts serial operation at once and ready to receive RS
bit. So in continuous reading operation, SID port must be "0".
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| S6A0079 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:34COM/120SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD |
| S6A0090 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:64 SEG / 26 COM DRIVER & CONTROLLER FOR STN LCD |
| S6A0092 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:80 SEG / 26 COM DRIVER & CONTROLLER FOR STN LCD |
| S6A0093 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:80 SEG / 26 COM DRIVER & CONTROLLER FOR STN LCD |
| S6A0094 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:80 SEG / 34 COM DRIVER & CONTROLLER FOR STN LCD |
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