hd66420 Renesas Electronics Corporation., hd66420 Datasheet - Page 5

• Manufacturer Part Number: hd66420
• Description: Ram-provided 160 Channel 4-level Grey Scale Driver For Dot Matrix Graphics Lcd
• Manufacturer: Renesas Electronics Corporation.

Resister List
CS RS 4 3 2 1 0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
–
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Index
Reg.Bits
– – – – –
– – – – – IR
0 0 0 0 0 R0
0 0 0 0 1 R1
0 0 0 1 0 R2
0 0 0 1 1 R3
0 0 1 0 0 R4
0 0 1 0 1 R5
0 0 1 1 0 R6
0 0 1 1 1 R7
0 1 0 0 0 R8
0 1 0 0 1 R9
0 1 0 1 0 R10 Blink register 3
0 1 0 1 1 R11 Partial display block register
0 1 1 0 0 R12 Gray scale palette 1 (0, 0)
0 1 1 0 1 R13 Gray scale palette 2 (0, 1)
0 1 1 1 0 R14 Gray scale palette 3 (1, 0)
0 1 1 1 1 R15 Gray scale palette 4 (1, 1)
1 0 0 0 0 R16 Contrast control register
1 0 0 0 1 R17 Reserved
1 0 0 1 0 R18 Reserved
1 0 0 1 1 R19 Reserved
1 0 1 0 0 R20 Reserved
1 0 1 0 1 R21 Reserved
1 0 1 1 0 R22 Reserved
1 0 1 1 1 R23 Reserved
1 1 0 0 0 R24 Reserved
1 1 0 0 1 R25 Reserved
1 1 0 1 0 R26 Reserved
1 1 0 1 1 R27 Reserved
1 1 1 0 0 R28 Reserved
1 1 1 0 1 R29 Reserved
1 1 1 1 0 R30 Reserved
1 1 1 1 1 R31 Reserved
Register Name
Index register
Control register 1
Control register 2
X address register
Y address register
Display RAM access register
Display start line register
Blink start line register
Blink end line register
Blink register 1
Blink register 2
R/W
–
W
W
W
W
W
R/W
W
W
W
W
W
W
W
W
W
W
W
W
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Data bits
7
RMW DISP STBY PWR AMP REV
BIS1 BIS0 WLS GRAY DTY1 DTY0 INC
D7
BK0
BK8
6
YA6
D6
ST6
BSL6 BSL5 BSL4 BSL3 BSL2 BSL1 BSL0
BEL6 BEL5 BEL4 BEL3 BEL2 BEL1 BEL0
BK1
BK9
CM1 CM0 CC4
5
XA5
YA5
D5
ST5
BK2
BK10 BK11 BK12 BK13 BK14 BK15
4
IR4
XA4
YA4
D4
ST4
BK3
GP14 GP13 GP12 GP11 GP10
GP24 GP23 GP22 GP21 GP20
GP34 GP33 GP32 GP31 GP30
GP44 GP43 GP42 GP41 GP40
3
IR3
XA3
YA3
D3
ST3
BK4
BK16 BK17 BK8
PB3
CC3 CC2
2
IR2
XA2
YA2
D2
ST2
BK5
PB2
HD66420
1
IR1
HOLT ADC
XA1
YA1
D1
ST1
BK6
PB1
CC1 CC0
0
IR0
BLK
XA0
YA0
D0
ST0
BK7
BK9
PB0
5