參數(shù)資料
型號: PCF8549
廠商: NXP Semiconductors N.V.
英文描述: 65 x 102 pixels matrix LCD driver
中文描述: 65 × 102像素矩陣LCD驅(qū)動器
文件頁數(shù): 14/36頁
文件大?。?/td> 271K
代理商: PCF8549
1997 Nov 21
14
Philips Semiconductors
Product specification
65
×
102 pixels matrix LCD driver
PCF8549
INSTRUCTIONS
The instruction format is divided into two modes: If D/C is set low, the status byte can be read or commands can be sent
to the chip, depending on the R/W signal. If D/C is set high, the DDRAM will be accessed. Every instruction can be sent
in any order to the PCF8549.
Table 1
Instruction set
INSTRUCTION
D/C
R/W
COMMAND BYTE
DESCRIPTION
DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
H = 0 or 1
NOP
Function Set
0
0
0
0
0
0
0
0
0
1
0
MX
0
MY
0
PD
0
V
0
H
no operation
power down control; entry mode;
Extended Instruction Set control (H)
reads status byte
Read Status Byte
0
1
PD
D
7
D
7
X
X
D
E
MX
MY
X
Write Data
1
0
D
6
D
6
D
5
D
5
D
4
D
4
D
3
D
3
D
2
D
2
D
1
D
1
D
0
D
0
writes data to RAM
Read Data
1
1
reads data from RAM
H = 0
Set Read Modify
Write
Reserved
Display Control
Reserved
Set Y address of
RAM
Set X address of
RAM.
0
0
0
0
0
0
0
0
1
RM
sets the read-modify-write mode
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
1
X
Y
3
1
D
X
Y
2
X
0
X
Y
1
X
E
X
Y
0
do not use
sets display configuration
do not use
sets Y-address of RAM: 0
Y
8
0
0
1
X
6
X
5
X
4
X
3
X
2
X
1
X
0
sets X-address of RAM: 0
X
101
H = 1
Reserved
Reserved
Temperature Control 0
Reserved
Bias System
Reserved
Set V
OP
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
1
V
OP6
0
0
0
0
0
X
V
OP5
0
0
0
0
1
X
V
OP4
0
0
0
1
0
X
V
OP3
0
0
1
X
BS
2
X
V
OP2
0
1
TC
1
X
BS
1
X
V
OP1
1
X
TC
0
X
BS
0
X
V
OP0
do not use
do not use
set temperature coefficient (TCx)
do not use
Set Bias System(BSx)
do not use (reserved for test...)
write V
OP
to register
0
0
0
0
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