参数资料
型号: S6A0032
元件分类: 显示控制器
英文描述: 16 X 80 DOTS DOT MAT LCD DRVR AND DSPL CTLR, UUC138
封装: DIE-138
文件页数: 3/39页
文件大小: 361K
代理商: S6A0032
16 COM / 80 SEG DRIVER & CONTROLLER FOR STN LCD
PRELIMINARY SPEC. VER. 0.5
S6A0032
7
FUNCTIONAL DESCRIPTION
MICROPROCESSOR INTERFACE
S6A0032 has two kinds of interface type with MPU: 4-bit bus or 8-bit bus. 4-bit bus and 8-bit bus is selected by the
DL bit in the instruction register, and 6800-series MPU or 8080-series MPU is selected by MI pin.
Table 4. Various Kinds of MPU Interface according to MI and DL Bit
MI
DL
CSB
RS
RW_WR
E_RD
DB0 to DB3
DB4 to DB7
8-bit (H)
CSB
RS
R/W
E
DB0 to DB3
DB4 to DB7
6800
series (H)
4-bit (L)
CSB
RS
R/W
E
-
DB4 to DB7
8-bit (H)
CSB
RS
WR
RD
DB0 to DB3
DB4 to DB7
8080
series (L)
4-bit (L)
CSB
RS
WR
RD
-
DB4 to DB7
NOTE: "-" - Don’t care ("High", "Low" or Open)
(H): fixed "High" (VDD)
(L): fixed "Low" (VSS)
MI: "High" = 6800-series MPU, "Low" = 8080-series MPU
DL: "High" = 8-bit mode, "Low" = 4-bit mode
CSB: "High" = chip is not selected, "Low" = chip is selected
RS: "High" = data register, "Low" = instruction register
RW_WR: read / write indicating signal in 6800 mode, active high signal for writing command in 8080 mode.
E_RD: Active low signal for writing command or high enable signal for reading command in 6800 mode,
low enable signal for reading command in 8080 mode.
Parallel Interface
During writing operation, two 8-bit registers, data register (DR) and instruction register (IR), are used. The data
register (DR) is used as temporary data storage place for being written into DDRAM / CGRAM. Target RAM is
selected by RAM address set instruction. The Instruction register (IR) is used only to store instruction code
transferred from MPU. To select DR or IR register, RS input pin is used.
During reading operation, 8-bit output data register (OR) is used. The output data register (OR) is used as temporary
data storage place for being read from DDRAM / CGRAM. Destination RAM is selected by RAM address set
instruction. After RAM address set, the first reading in the 8-bit bus mode (first and second reading in the 4-bit bus
mode) is a dummy cycle (figure 3, 4, 5, 6). The valid data comes from the second reading in the 8-bit bus mode (from
the 3rd reading in 4-bit bus mode). The dummy cycle makes the address counter (AC) indicate the correct address.
So it is recommended to set address before writing. The instruction read operation is supported for indicating
internal operation is being processed (Busy Flag).
In the 4-bit bus mode, it is needed to transfer 4-bit data (through DB4 to DB7) by two times. The high order bits (for
8-bit mode DB4 to DB7) are transferred before the low order bits (for 8-bit mode DB0 to DB3) in read and write
transaction. The DB0 to DB3 pins are floated in this 4-bit bus mode.
After RESETB operation, S6A0032 considers the first 4-bit data from MPU as the high order bits in the 4-bit bus
mode.
相关PDF资料
PDF描述
S6A0069 16 X 40 DOTS DOT MAT LCD DRVR AND DSPL CTLR, UUC80
S6A0078 34 X 120 DOTS DOT MAT LCD DRVR AND DSPL CTLR, UUC183
S80296SA40 16-BIT, 40 MHz, MICROCONTROLLER, PQFP100
S80486-DX4-75-S-V-8-B 32-BIT, 75 MHz, MICROPROCESSOR, PQFP208
S80960SA-16 32-BIT, 16 MHz, RISC PROCESSOR, PQFP80
相关代理商/技术参数
参数描述
S6A0035 制造商:SAMSUNG 制造商全称:Samsung semiconductor 功能描述:53 SEGMENT STATIC DRIVER
S6A0065 制造商:SAMSUNG 制造商全称:Samsung semiconductor 功能描述:40 CH SEGMENT/COMMON DRIVER FOR DOT MATRIX LCD
S6A0065B01-Q08J 制造商:Samsung Semiconductor 功能描述:
S6A0065B01-Q0RJ 制造商:Samsung Semiconductor 功能描述:N/A - Trays
S6A0069 制造商:SAMSUNG 制造商全称:Samsung semiconductor 功能描述:40 SEG / 16 COM DRIVER & CONTROLLER FOR DOT MATRIX LCD