Техническая Спецификация для Microchip Technology DM240015
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.
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
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