ST7586S Sitronix Technology Corporation, ST7586S Datasheet - Page 33

• Manufacturer Part Number: ST7586S
• Description: 4-level Gray Scale Dot Matrix Lcd Controller/driver
• Manufacturer: Sitronix Technology Corporation

ST7586S
Set Column Address
This instruction is used to define area of DDRAM where MCU can access. The column address is automatically increased by
one (+1) after each DDRAM access. After the ending column address XE[15..0], column address returns to starting column
address XS[15..0]. The XS[15..0] setting that must be equal to or less than XE[15..0]. When XS[15..0] or XE[15..0] is great
than 7Fh, out of DDRAM range will be ignored.
Set Row Address
This instruction is used to define area of DDRAM where MCU can access. The row address is automatically increased by
one (+1) after column address counter is over XE[15..0]. The row address will return to starting row address YS[15..0]
immediately when the row address increases one over the ending row address YE[15..0]. The YS[15..0] setting must be
equal to or less than YE[15..0]. When YS[15..0] or YE[15..0] is great than 9Fh, out of DDRAM range will be ignored.
Write Display Data
This instruction is used to transfer data from MCU to DDRAM without changing status of ST7586S. The column address and
row address will be reset to starting column address (XS) and starting row address (YS) when this instruction is accepted.
The pre-instruction is defined to enter write DDRAM mode. The following continuously data means content of DDRAM
without pre-instruction. Write Display Data would be stopped when any other instruction is accepted.
Read Display Data
The instruction is used to transfer data from DDRAM to MCU without changing status of ST7586S. The column address and
row address will be reset to staring column address (XS) and starting row address (YS) when this instruction is accepted.
The pre-instruction is defined to enter read DDRAM mode. The following continuously data means content of DDRAM
without pre-instruction. Read Display Data would be stopped when any other instruction is accepted. Read Display Data is
only available via the parallel interface.
Ver-1.1b
A0
A0
A0
A0
0
1
1
1
1
0
1
1
1
1
0
1
0
1
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
0
0
0
0
0
1
XS15
XE15
YS15
YE15
XS7
XE7
YS7
YE7
D7
D7
D7
D7
D7
D7
0
0
0
0
XS14
XE14
YS14
YE14
XS6
XE6
YS6
YE6
D6
D6
D6
D6
D6
D6
0
0
0
0
XS13
XE13
YS13
YE13
XS5
XE5
YS5
YE5
D5
D5
D5
D5
D5
D5
1
1
1
1
XS12
XE12
YS12
YE12
XS4
XE4
YS4
YE4
D4
D4
D4
D4
D4
D4
0
0
0
0
XS11
XE11
YS11
YE11
XS3
XE3
YS3
YE3
D3
D3
D3
D3
D3
D3
1
1
1
1
33/63
XS10
XE10
YS10
YE10
XS2
XE2
YS2
YE2
D2
D2
D2
D2
D2
D2
0
0
1
1
XS9
XS1
XE9
XE1
YS9
YS1
YE9
YE1
D1
D1
D1
D1
D1
D1
1
1
0
1
XS8
XS0
XE8
XE0
YS8
YS0
YE8
YE0
D0
D0
D0
D0
D0
D0
0
1
0
0
XS: Starting column address
XE: Ending column address
YS: Starting row address
YE: Ending row address
Write display data to DDRAM
Read display data from DDRAM
Description
Description
Description
Description
2009/12/23