ST7522 Sitronix, ST7522 Datasheet - Page 21

• Manufacturer Part Number: ST7522
• Description: 17 x 96 Dot Matrix LCD Controller
• Manufacturer: Sitronix

ST7522
This command specifies a column address of the display data RAM. When the display data RAM is accessed by the MPU
continuously, the column address is incremented by I each time it is accessed from the set address. Therefore, the MPU
can access to data continuously. The column address stops to be incremented at address 95, and the page address is not
changed continuously.
This command loads the column address register.
Reading the command I/O register (A0=0) yields system status information.
The ADC bit indicates the way column addresses are assigned to segment drivers.
The ON/OFF bit indicates the current status of the display.
The RESET bit indicates whether the driver is executing a hardware or software reset or if it is in normal operating mode,
Ver 1.0c
A0
A0
A0
0
0
0
ADC=1 : Normal. Column address n = segment driver n.
ADC=0: Inverted. Column address 95-n = segment driver n.
It is the inverse of the polarity of the display ON/OFF command.
ON/OFF=1: Display OFF
ON/OFF=0: Display ON
RESET=1: Currently executing reset command.
RESET=0: Normal operation
Set Column Address
Read Status
―
―
―
RD
RD
RD
1
1
0
WR
WR
WR
―
―
―
0
0
1
A7
0
0
0
D7
D7
D7
0
0
0
A6
0
0
1
A5
0
0
0
ADC
D6
D6
D6
0
0
A4
0
0
1
ON/OFF RESET
.
.
.
.
A3
D5
D5
0
0
1
D5
0
0
A2
0
0
1
21/45
D4
D4
D4
0
1
A1
0
0
1
www.DataSheet.co.kr
A0
0
1
1
D3
D3
D3
A3
A7
0
Column Address
0(default)
D2
D2
D2
A2
A6
0
95
1
.
.
.
.
D1
A1
D1
A5
D1
0
D0
A0
D0
A4
D0
0
Low column set
High column set
2002/07/10
Datasheet pdf - http://www.DataSheet4U.net/