HD66421 Datasheet, PDF (7/46 Pages) Hitachi Semiconductor – (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD)

Preliminary
Rev. 1.1E '99.02.10
HD66421
Register List
CS RS ^{Index Reg. Bits}
4 3210
Register Name
Data bits
R/W
76543210
1 - - ----
-
0 0 - - - - - IR Index register
W
IR4 IR3 IR2 IR1 IR0
0 1 0 0 0 0 0 R0 Control register 1
W RMW DISP STBY PWR AMP REV HOLT ADC
0 1 0 0 0 0 1 R1 Control register 2
W BIS1 BIS0 WLS GRAY DTY1 DTY0 INC BLK
0 1 0 0 0 1 0 R2 X address register
W
XA5 XA4 XA3 XA2 XA1 XA0
0 1 0 0 0 1 1 R3 Y address register
W
YA6 YA5 YA4 YA3 YA2 YA1 YA0
0 1 0 0 1 0 0 R4 Display RAM access register R/W D7 D6 D5 D4 D3 D2 D1 D0
0 1 0 0 1 0 1 R5 Display start line register
W
ST6 ST5 ST4 ST3 ST2 ST1 ST0
0 1 0 0 1 1 0 R6 Blink start line register
W
BSL6 BSL5 BSL4 BSL3 BSL2 BSL1 BSL0
0 1 0 0 1 1 1 R7 Blink end line register
0 1 0 1 0 0 0 R8 Blink register 1
W
BEL6 BEL5 BEL4 BEL3 BEL2 BEL1 BEL0
W BK0 BK1 BK2 BK3 BK4 BK5 BK6 BK7
0 1 0 1 0 0 1 R9 Blink register 2
0 1 0 1 0 1 0 R10 Blink register 3
W BK8 BK9 BK10 BK11 BK12 BK13 BK14 BK15
W
BK16 BK17 BK18 BK19
0 1 0 1 0 1 1 R11 Partial display block register W
CLE PB3 PB2 PB1 PB0
0 1 0 1 1 0 0 R12 Gray scale palette 1 (0,0)
W
GP14 GP13 GP12 GP11 GP10
0 1 0 1 1 0 1 R13 Gray scale palette 2 (0,1)
W
GP24 GP23 GP22 GP21 GP20
0 1 0 1 1 1 0 R14 Gray scale palette 3 (1,0)
W
GP34 GP33 GP32 GP31 GP30
0 1 0 1 1 1 1 R15 Gray scale palette 4 (1,1)
W
0 1 1 0 0 0 0 R16 Contrast control register
W
GP44 GP43 GP42 GP41 GP40
CM1 CM0 CC4 CC3 CC2 CC1 CC0
0 1 1 0 0 0 1 R17 Plane selection register
W
0 1 1 0 0 1 0 R18 Reserved
-
MON DSEL PSEL
0 1 1 0 0 1 1 R19 Reserved
-
0 1 1 0 1 0 0 R20 Reserved
-
0 1 1 0 1 0 1 R21 Reserved
-
0 1 1 0 1 1 0 R22 Reserved
-
0 1 1 0 1 1 1 R23 Reserved
-
0 1 1 1 0 0 0 R24 Reserved
-
0 1 1 1 0 0 1 R25 Reserved
-
0 1 1 1 0 1 0 R26 Reserved
-
0 1 1 1 0 1 1 R27 Reserved
-
0 1 1 1 1 0 0 R28 Reserved
-
0 1 1 1 1 0 1 R29 Reserved
-
0 1 1 1 1 1 0 R30 Reserved
-
0 1 1 1 1 1 1 R31 Reserved
-
7