參數(shù)資料
型號(hào): S6B33A2
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: 128 RGB Segment & 129 Common Driver For 4,096 Color STN LCD
中文描述: 128段的RGB
文件頁(yè)數(shù): 17/67頁(yè)
文件大小: 405K
代理商: S6B33A2
S6B33A2 PRELIMINARY VER 1.3 128 RGB SEGMENT & 129 COMMON DRIVER FOR 4,096 COLOR STN LCD
13
FUNCTIONAL DESCRIPTION
MPU INTERFACE
Chip Select Input
There are /CS1 and CS2 pins for chip selection. The S6B33A2 can interface with an MPU only when /CS1 is “L” and
CS2 is “H”. When these pins are set to any other combination, D/I, /RD, and /WR inputs are disabled and DB0 to
DB15 are to be high impedance. And, in case of serial interface, the internal shift register and the counter are reset.
Parallel/Serial Interface
The S6B33A2 has four types of interface with an MPU, which are two serial and two parallel interfaces. This parallel
or serial interface is determined by PS pin as shown in Table9
.
Table 9. Parallel / Serial Interface Mode.
PS
MPU[1]
/CS1
CS2
MPU bus type
L
8080-Series MPU
H
H
/CS1
CS2
6800-Series MPU
L
3–Pin SPI
L
H
/CS1
CS2
4-Pin SPI
Parallel Interface (PS=”H”)
The 8-bit/16-bit bi-directional data bus is used in parallel interface. The type of MPU is selected by MPU[1] and the
mode of data-bus is controlled by MPU[0] as shown in below. In accessing internal registers (D/I = “ L” ), only DB[7:0]
are valid.
Table 10. Microprocessor Selection for Parallel Int erface
MPU[1]
MPU[0]
/CS1
CS2
/RD
/WR
Data Bus
MPU bus type
L
DB[7:0]
L
H
/CS1
CS2
E
R/W
DB[15:0]
8080-series MPU
L
DB[7:0]
H
H
/CS1
CS2
/RD
/WR
DB[15:0]
6800-series MPU
Table 11. Parallel Data Transfer
6800-series
8080-series
D/I
/RD
/WR
/RD
/WR
Description
H
H
H
L
H
Read display data
H
H
L
H
L
Write display data
L
H
H
L
H
Read out internal status register
L
H
L
H
L
Write instruction data
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