參數(shù)資料
型號: PCF21132
廠商: NXP Semiconductors N.V.
英文描述: LCD controller/driver(LCD控制器/驅(qū)動器)
中文描述: LCD控制器/驅(qū)動器(液晶顯示控制器/驅(qū)動器)
文件頁數(shù): 53/60頁
文件大?。?/td> 392K
代理商: PCF21132
1
5
P
P
L
P
Table 18
Initialization by instruction, 4-bit interface; not applicable for I
2
C-bus operation
STEP
DESCRIPTION
Power-on or unknown state
|
Wait 2 ms after V
DD
rises above V
POR
|
RS
0
R/W
0
DB7
0
DB6
0
DB5
1
DB4
1
BF cannot be checked before this instruction
function set (interface is 8 bits long)
|
Wait 2 ms
|
RS
0
R/W
0
DB7
0
DB6
0
DB5
1
DB4
1
BF cannot be checked before this instruction
function set (interface is 8 bits long)
|
Wait 40
μ
s
|
RS
0
R/W
0
DB7
0
DB6
0
DB5
1
DB4
1
BF cannot be checked before this instruction
function set (interface is 8 bits long)
BF can be checked after the following instructions; when BF is not checked, the waiting time
between instructions is the specified instruction time (see Table 3)
function set (set interface to 4 bits long)
interface is 8 bits long
function set (interface is 4 bits long)
specify number of display lines
|
RS
0
0
0
0
0
0
0
0
0
R/W
0
0
0
0
0
0
0
0
0
DB7
0
0
0
0
1
0
0
0
0
DB6
0
0
M
0
0
0
0
0
1
DB5
1
1
0
0
0
0
0
0
I/D
DB4
0
0
H
0
0
0
1
0
S
display off
clear display
entry mode set
|
Initialization ends
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