參數(shù)資料
型號: HM17CM256
廠商: HYNIX SEMICONDUCTOR INC
元件分類: 顯示驅(qū)動器
英文描述: 128XRGBX82 OUTPUT LCD DRIVER IC with built-in RAM
中文描述: LIQUID CRYSTAL DISPLAY DRIVER, UUC580
封裝: 19.75 X 2.39 MM, GOLD BUMP, DIE-580
文件頁數(shù): 14/111頁
文件大?。?/td> 2094K
代理商: HM17CM256
HM17CM256
- 14 -
I
FUNCTION DESCRIPTION
(1) CPU interface
(1-1) Selection of interface type
HM17CM256
receives data through 8 bit parallel I/O(D
0
~D
7
)
divided into serial data input (SDA, SCL). Parallel or serial selection is decided by P/S pin setting.
Parallel or serial selection is possible as following table.
Reading out from internal register or RAM is not possible at serial interface mode.
TABLE
P/S
Type
CS
RS
RD
H
Parallel input
CS
RS
RD
L
Serial input
CS
RS
-
caution 1) “-” mark item : Fix to ”H” or ”L”
(1-2) Parallel input
In the parallel interface mode selected by P/S port, parallel data is transferred from the
8bit/16bit MPU through data bus. SEL68 port setting makes 80-series or 68-series interface
selection
TABLE
SEL68
CPU type
CS
RS
H
68 series CPU
CS
RS
L
80 series CPU
CS
RS
(1-3) Data identification
Combinations of RS, RD, and WR signals identify contents of 8bit data bus.
TABLE
68 series
80 series
RS
R/W
RD
WR
1
1
0
1
Read out from internal register
1
0
1
0
Write in to internal register
0
1
0
1
Read display data
0
0
1
0
Write display data
(1-4) Serial interface
2 types of serial interface (3 line type mode, 4 line type mode) are available by selecting
SMODE pin.
TABEL
SMODE
Serial interface mode
H
3 line type
L
4 line type
16 bit parallel I/O(D
0
~D
15
) or
WR
SEL68
SDA
SCL
data
WR
-
SEL68
D
0
~D
7
(D
0
~D
15
)
-
SDA
SCL
-
RD
WR
data
E
R/W
D
0
~D
7
(D
0
~D
15
)
RD
WR
D
0
~D
7
(D
0
~D
15
)
FUNCTION
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