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參數(shù)資料
| 型號： | S-4561A |
| 元件分類： | 顯示控制器 |
| 英文描述： | 16 X 60 DOTS DOT MAT LCD DRVR AND DSPL CTLR, UUC166 |
| 封裝： | 7.65 X 2 MM, DIE-166 |
| 文件頁數(shù)： | 48/48頁 |
| 文件大?。?/td> | 427K |
| 代理商： | S-4561A |
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LCD Controller-Driver
S-4561A
Seiko Instruments Inc.
9
1.2 Serial Interface
Serial interface is engaged when the P/SX terminal is “L.” The instruction code is read at the rising edge of the serial clock
(SCLK). Serial data is input in numerical order from DB0 to DB7. The instruction code is the same as that for the parallel
data. Connect and fix the P/SX terminal to VSS. Connect pins DB2 through DB7, R/WX, and C86 to “OPEN.”
P/SX:
“L” Serial Interface Operation/Fix to VSS.
RS:
Write in the “L”Instruction Register.
Write in the “H” Data Register.
E:
“L” Active
DB0:
Serial Data Input Pin (SDI)
DB1:
Serial Clock Input Pin (SCLK)
DB2 to DB7:
OPEN
R/WX:
OPEN
C86:
OPEN
Figure 7 Serial Interface
Table 10 Serial Interface
Taking into consideration external or reflective noises, optimize the serial clock wiring.
Always check operations after
mounting the IC on your device.
2.
Busy
When the BUSY flag points “1,” it shows that an instruction is being executed. The BUSY flag is read to DB7 by the
ADDRESS READ command. In case of commands other than the RESET or the DISPLAY CLEAR, there is no need for
confirming the BUSY flag. This is because that the instruction is completed within the cycle time specified in accordance with
the timing characteristics. After confirming that BUSY flag points “0” during RESET or DISPLAY CLEAR operation or after
the specified wait time, write the next command. When the BUSY flag points “1,” any command other than the ADDRESS
READ cannot be accepted.
When a serial interface is selected, the BUSY READ is not available.
3.
Address Counter
The Address Counter (AC) gives respective addresses for DDRAM, CGRAM, ICONRAM or ICON BLINK RAM according to
the contents of the AC. Only one RAM among the four kinds of RAMs is selected by the RAM ADDRESS SETTING
command. After the ADDRESS SETTING command is executed, the display data can be read and written in the selected
RAM. The contents of the RAM AC, where the ADDRESS READ command, is also selected are read. Increment and
decrement of the AC are automatically executed after the READ or WRITE command is executed. Once an address is set,
READ and WRITE commands can be input in succession.
E
RS
Operation
L
Write/Input to Instruction Register
L
H
Write to Data Register
HL
HH
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
E
RS
SCLK
(DB1)
SDI
(DB0)
DB0
Valid
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