Datasheet

 2012-2013 Microchip Technology Inc. DS30009312B-page 317
PIC24FJ128GC010 FAMILY
bit 2-0 LMUX<2:0>: LCD Commons Select bits
REGISTER 22-1: LCDCON: LCD CONTROL REGISTER (CONTINUED)
LMUX<2:0> Multiplex Bias
111 1/8 MUX (COM<7:0>) 1/3
110 1/7 MUX (COM<6:0>) 1/3
101 1/6 MUX (COM<5:0>) 1/3
100 1/5 MUX (COM<4:0>) 1/3
011 1/4 MUX (COM<3:0>) 1/3
010 1/3 MUX (COM<2:0>) 1/2 or 1/3
001 1/2 MUX (COM<1:0>) 1/2 or 1/3
000 Static (COM0) Static
Note: For multiplex above 4 commons, COM4, COM5, COM6 and COM7 also have segment
functionality. Therefore, if the COM is enabled in multiplexing, the segment will not be
available on that pin.
REGISTER 22-2: LCDREG: LCD CHARGE PUMP CONTROL REGISTER
RW-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
CPEN — — — — — — —
bit 15 bit 8
U-0 U-0 RW-1 RW-1 RW-1 RW-1 RW-0 RW-0
— — BIAS2 BIAS1 BIAS0 MODE13 CKSEL1 CKSEL0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 CPEN: 3.6V Charge Pump Enable bit
1 = The regulator generates the highest (3.6V) voltage
0 = Highest voltage in the system is supplied externally (AV
DD)
bit 14-6 Unimplemented: Read as ‘0’
bit 5-3 BIAS<2:0>: Regulator Voltage Output Control bits
111 = 3.60V peak (offset on LCDBIAS0 of 0V)
110 = 3.47V peak (offset on LCDBIAS0 of 0.13V)
101 = 3.34V peak (offset on LCDBIAS0 of 0.26V)
100 = 3.21V peak (offset on LCDBIAS0 of 0.39V)
011 = 3.08V peak (offset on LCDBIAS0 of 0.52V)
010 = 2.95V peak (offset on LCDBIAS0 of 0.65V)
001 = 2.82V peak (offset on LCDBIAS0 of 0.78V)
000 = 2.69V peak (offset on LCDBIAS0 of 0.91V)
bit 2 MODE13: 1/3 LCD Bias Enable bit
1 = Regulator output supports 1/3 LCD Bias mode
0 = Regulator output supports Static LCD Bias mode
bit 1-0 CLKSEL<1:0>: Regulator Clock Select Control bits
11 =SOSC
10 =8 MHz FRC
01 = LPRC 31 kHz
00 = Disables regulator and floats regulator voltage output