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參數(shù)資料
| 型號： | S6A0090 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | 64 SEG / 26 COM DRIVER & CONTROLLER FOR STN LCD |
| 中文描述： | 64賽格/ 26 COM驅(qū)動(dòng)程序 |
| 文件頁數(shù)： | 14/54頁 |
| 文件大?。?/td> | 549K |
| 代理商： | S6A0090 |
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S6A0090
64 SEG / 26 COM DRIVER & CONTROLLER FOR STN LCD
10
FUNCTION DESCRIPTION
SYSTEM INTERFACE
S6A0090 has two kinds of interface type with MPU: bus mode and serial mode. Bus mode or serial mode is
selected by PS pin. In bus mode, 4-bit bus or 8-bit bus is selected by IF pin, and 68 series MPU or 80 series MPU
is selected by RES pin.
Table 4. Various kinds of MPU interface according to PS, RES and IF
PS
RES
IF
CSB
RS
E
DB0 to 3
DB4 to 5
DB6
DB7
8 bit (H)
CSB
RS
WR
DB0 to 3
DB4 to 5
DB6
DB7
80 series
(H)
4 bit (L)
CSB
RS
WR
*
DB4 to 5
DB6
DB7
8 bit (H)
CSB
RS
E
DB0 to 3
DB4 to 5
DB6
DB7
Bus
mode (H)
68 series
(L)
4 bit (L)
CSB
RS
E
*
DB4 to 5
DB6
DB7
Serial
mode (L)
(H)/(L)
(H)/(L)
CSB
RS
(H)/(L)
*
*
SCL
SI
"
*
": Don't care ("High", "Low" or "Open"), (H)/(L): fixed "High"(V
DD
) or "Low"(V
SS
)
PS: "High" = bus mode, "Low" = serial mode
RES: "High" = 80-series MPU, "Low" = 68-series MPU
IF: "High" = 8-bit mode, "Low" = 4-bit mode (PS: "High")
CSB: "High" = chip is not selected, "Low" = chip is selected
RS: "High" = data register, “Low" = instruction register
E: 80-series active "Low", 68-series active "High"
SCL (DB6): serial clock input
SI (DB7): serial data input
Interface with MPU in Parallel Mode (PS = "High")
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 / ICONRAM, and
one of these RAMs is selected by RAM address setting 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 in bus mode or
serial mode. In 4-bit bus mode, it is needed to transfer 4-bit data (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). The DB0 to
DB3 pins are floated in this 4-bit bus mode. After RES resets, S6A0090 considers first 4-bit data from MPU as the
high order bits.
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