RW1068 ETC-unknow, RW1068 Datasheet - Page 12

• Manufacturer Part Number: RW1068
• Description: 26com/84seg Driver & Controller For Dot Matrix Lcd
• Manufacturer: ETC-unknow

Read Busy
Read Data
Instruction
Write Data
SEGRAM
Set Data
CGRAM
Address
Address
DDRAM
Address
flag and
Address
Length
Set
Set
Set
Note : 1. When an MPU program with Busy Flag(DB7) checking is made, 1/ 2 FOSC ( is necessary ) for executing
the next instruction by the “ E “ signal after the Busy Flag ( DB7) goes to “ Low ”.
2.
RE
0
1
0
1
X
X
X
“ X ” Don’t care
RS
0
0
0
0
0
1
1
R/W
0
0
0
0
1
0
1
DB7
BF
D7
D7
0
0
1
1
DB6
AC6
SD6
AC6
D6
D6
1
1
26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD
DB5
AC5
AC5
SD5
AC5
D5
D5
X
Instruction Code
RockWorks Technology Corp.
DB4
AC4
AC4
SD4
AC4
D4
D4
X
DB3
AC3
AC3
AC3
SD3
AC3
D3
D3
12
DB2
AC2
AC2
AC2
SD2
AC2
D2
D2
DB1
AC1
AC1
AC1
AC1
SD1
D1
D1
DB0
AC0
AC0
AC0
SD0
AC0
D0
D0
Set CGRAM address in address
counter.
Set SEGRAM address in address
counter.
Set DDRAM address in address
counter.
Set data length for 3 line SPI
Can know internal operation is ready
or not by reading BF.
The contents of address counter
can also be read.
Write data into internal RAM.
(DDRAM / CGRAM / SEGRAM).
Read data from internal RAM.
(DDRAM / CGRAM / SEGRAM).
BF = “1” : busy state,
BF = ”0” : ready state.
Description
RW1068
( fosc = 270
Execution
Time
kHz )
37µs
37µs
37µs
37µs
43µs
43µs
0µs