PEDL9090-02
¡ Semiconductor
ML9090-01,-02
Register List
Register number Register
Data bits
RS R/W
Register name
3
0
0
0
0
0
0
1
1
2
0
0
0
0
1
1
0
0
1
0
0
1
1
0
0
0
0
0
0
1
0
1
0
1
0
1
symbol
KR
7
6
5
4
3
2
1
0
0
1
0
0
0
0
0
0
1
1/0
0
Key scan register ST2 ST1 ST0 S4 S3 S2 S1 S0
Display data register D7 D6 D5 D4 D3 D2 D1 D0
DRAM
XAD
X address register
Y address register
Port register A
—
—
—
—
—
—
—
—
—
—
X3 X2 X1 X0
Y4 Y3 Y2 Y1 Y0
PA0
0
YAD
0
PTA
—
—
—
—
0
PTB
Port register B
PB7 PB6 PB5 PB4 PB3 PB2 PB1 PB0
— DTY1DTY0
T4 T3 T2 T1 — DISP
0
FCR1
FCR2
Control register 1 INC WLS KT SHL
Control register 2
—
0
—
—
RS
Register select bit
1: RAM 0: Register
1: Read 0: Write
R/W Read/write select bit
ST0 to ST2 : Scan status
S0 to S4
D0 to D7
X0 to X3
Y0 to Y4
PA0
: Key scan data
: Display data and RAM read data
: X address
: Y address
: Port A data
PB0 to PB7 : Port B data (ML9090-01 only)
INC
WLS
KT
: Address increment 1: X direction, 0: Y direction
: Word length select 1: 6 bits, 0: 8 bits
: Key scan cycle select 1: 10 ms, 0: 5 ms
DTY0, DTY1: Display duty select (1/8, 1/9, 1/10) (ML9090-01)
(1/16, 1/17, 1/18) (ML9090-02)
SHL
: Common driver shift direction select bit
1: COM10ÆCOM1, 0 : COM1ÆCOM10 (ML9090-01)
1: COM18ÆCOM1, 0 : COM1ÆCOM18 (ML9090-02)
DISP
T1 to T4
—
: Display ON/OFF select 1: Display ON, 0: Display OFF
: Write "0"
: Don't care
13/38
OKI [ OKI ELECTRONIC COMPONETS ]
