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ST7628 数据表(PDF) 17 Page - Sitronix Technology Co., Ltd.

部件名 ST7628
功能描述  65K Color Dot Matrix LCD Controller/Driver
PDF  213 Pages
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制造商  SITRONIX [Sitronix Technology Co., Ltd.]
网页  http://www.sitronix.com.tw
标志 SITRONIX - Sitronix Technology Co., Ltd.

ST7628 数据表(HTML) 17 Page - Sitronix Technology Co., Ltd.

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ST7628
Ver 1.4
17/213
2008/08
7. FUNCTIONAL DESCRIPTION
7.1 MICROPROCESSOR INTERFACE
Chip Select Input
/CS pin is chip selection. The ST7628 is active when /CS=L. In serial interface mode, the internal shift register and the
counter are reset when /CS=H.
7.1.1
Selecting Parallel / Serial Interface
ST7628 has six types of interface with an MPU, which are two serial and four parallel interfaces. This parallel or serial
interface is determined by IF pin as shown in Table 7.1.1.
Table 7.1.1Parallel / Serial Interface Mode
I/F Mode
Pin Assignment
IF3
IF2
IF1
I/F Description
/CS
A0
E_RD
RW_WR
D15 to D8
Used
Data Bus
D1
D0
H
H
H
80 serial 16-bit parallel
/CS
A0
/RD
/WR
D15 ~ D8
D7 ~ D2
D1
D0
H
H
L
80 serial 8-bit parallel
/CS
A0
/RD
/WR
--
D7 ~ D2
D1
D0
H
L
H
68 serial 16-bit parallel
/CS
A0
E
R/W
D15 ~ D8
D7 ~ D2
D1
D0
H
L
L
68 serial 8-bit parallel
/CS
A0
E
R/W
--
D7 ~ D2
D1
D0
L
H
H
8-bit SPI mode (4 line)
/CS
SCL
--
--
--
--
A0
SI
L
H
L
9-bit SPI mode (3 line)
/CS
SCL
--
--
--
--
--
SI
NOTE: When these pins are set to any other combination, A0, E_RD and RW_WR inputs are disabled and D0 to D15 are
to be high impedance.
7.1.2
8-bit or 16-bit Parallel Interface
The ST7628 identifies the type of the data bus signals according to the combination of A0, /RD (E) and /WR (W/R) signals,
as shown in Table 7.1.2.
Table 7.1.2Parallel Data Transfer
Common
6800-series
8080-series
A0
R/W
E
/WR
/RD
Description
H
H
↑
H
↓
Register status read
H
H
↑
H
↓
Display data read out
L
L
↓
↑
H
Instruction write
H
L
↓
↑
H
Display data write



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