參數(shù)資料
型號(hào): UPD161401W
廠商: NEC Corp.
英文描述: 256-COLOR, 1/80-DUTY LCD CONTROLLER/DRIVER WITH ON-CHIP RAM
中文描述: 256色,1/80-DUTY LCD控制器/驅(qū)動(dòng)器,片內(nèi)RAM
文件頁數(shù): 18/124頁
文件大?。?/td> 647K
代理商: UPD161401W
Data Sheet S15726EJ2V0DS
18
μ
PD161401
The data bus signals are identified by the combination of the RS, /RD(E), /WR (R,/W) signals as shown in the
following table.
Common
M68
i80
Common
Data Bus
Function
RS
R,/W
E
/RD
/WR
BMOD
D
15
to D
8
D
7
to D
0
0
Note1
Note1
1
1
1
0
1
1
Hi-Z
OUT
Reads the register.
0
Note2
IN
1
0
1
1
0
1
Hi-Z
IN
Writes the display data/register.
0
Hi-Z
OUT
0
1
1
0
1
1
Hi-Z
OUT
Prohibited
0
Hi-Z
IN
0
0
1
1
0
1
Hi-Z
IN
Writes the control index register.
0/1
Other
Hi-Z
Hi-Z
Remark
IN : Input status (cannot be open), OUT : Output status, Hi-Z : High impedance (may be open)
Notes1.
In the
μ
PD161401, the data of the display access memory register, the complementary color blink data
memory register, the specified color blink data memory register and the reverse data memory access
register (R12, R41, R45, R50) are read-prohibited. However, if R12 is selected, the data bus signals D
15
to
D
0
enter an output state. If another register is specified, the D
15
to D
8
signals become Hi-Z and the D
7
to D
0
signals enter an output state.
2.
Only the display access memory register (R12) enters the input state. If another register is specified, the D
15
to D
8
signals become Hi-Z.
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