參數(shù)資料
型號： PCF2104N
廠商： NXP Semiconductors N.V.
英文描述： LCD controller/driver
中文描述： LCD控制器/驅(qū)動器
文件頁數(shù)： 42/56頁
文件大?。?/td> 366K
代理商： PCF2104N
1
4
P
P
L
P
Table 9
Example of I
2
C-bus operation; 1-line display (using internal reset, assuming SA0 = V
SS
; note 1)
STEP
I
2
C-BUS BYTE
DISPLAY
OPERATION
1
2
I
2
C-bus start
Slave address for write:
SA6 = 0; SA5 = 1; SA4 = 1; SA3 = 1; SA2 = 0; SA1 = 1;
SA0 = 0; R/W = 0; Ack = 1
Send a control byte for function set:
Co = 0; RS = 0; R/W = 0; Ack = 1
Function set:
DB7 = 0; DB6 = 0; DB5 = 1; DB4 = X; DB3 = 0; DB2 = 0;
DB1 = 0; DB0 = 0; Ack = 1
Display on/off control:
DB7 = 0; DB6 = 0; DB5 = 0; DB4 = 0; DB3 = 1; DB2 = 1;
DB1 = 1; DB0 = 0; Ack = 1
Entry mode set:
DB7 = 0; DB6 = 0; DB5 = 0; DB4 = 0; DB3 = 0; DB2 = 1;
DB1 = 1; DB0 = 0; Ack = 1
I
2
C-bus start
Initialized. No display appears.
During the acknowledge cycle SDA will be pulled-down by
the PCF2104x.
3
Control byte sets RS and R/W for following data bytes.
4
Selects 1-line display; SCL pulse during acknowledge
cycle starts execution of instruction.
5
_
Turns on display and cursor. Entire display shows
character Hex 20 (blank in ASCII-like character sets).
6
_
Sets mode to increment the address by 1 and to shift the
cursor to the right at the time of write to the DDRAM or
CGRAM. Display is not shifted.
For writing data to DDRAM, RS must be set to 1.
Therefore a control byte is needed.
7
_
8
Slave address for write:
SA6 = 0; SA5 = 1; SA4 = 1; SA3 = 1; SA2 = 0; SA1 = 1;
SA0 = 0; R/W = 0; Ack = 1
Send a control byte for write data:
Co = 0; RS = 1; R/W = 0; Ack = 1
Write data to DDRAM:
DB7 = 0; DB6 = 1; DB5 = 0; DB4 = 1; DB3 = 0; DB2 = 0;
DB1 = 0; DB0 = 0; Ack = 1
Write data to DDRAM:
DB7 = 0; DB6 = 1; DB5 = 0; DB4 = 0; DB3 = 1; DB2 = 0;
DB1 = 0; DB0 = 0; Ack = 1
_
9
_
10
P_
Writes ‘P’. The DDRAM has been selected at power-up.
The cursor is incremented by 1 and shifted to the right.
11
PH_
Writes ‘H’.
12 to 15
|
|
|
|
16
Write data to DDRAM:
DB7 = 0; DB6 = 1; DB5 = 0; DB4 = 1; DB3 = 0; DB2 = 0;
DB1 = 1; DB0 = 1; Ack = 1
PHILIPS_
Writes ‘S’.
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PCF2104NU 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:LCD controller/driver
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PCF2104X 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:LCD controller/driver
PCF2105 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:LCD controller/driver
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