PIC16LF1904 Datasheet, PDF (187/288 Pages) Microchip Technology – 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt XLP Technology

PIC16LF1904/6/7
REGISTER 19-1: LCDCON: LIQUID CRYSTAL DISPLAY (LCD) CONTROL REGISTER
R/W-0/0
LCDEN
bit 7
R/W-0/0
SLPEN
R/C-0/0
WERR
U-0
R/W-0/0
R/W-0/0
R/W-1/1
R/W-1/1
—
CS<1:0>
LMUX<1:0>
bit 0
Legend:
R = Readable bit
u = Bit is unchanged
‘1’ = Bit is set
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
C = Only clearable bit
bit 7
bit 6
bit 5
bit 4
bit 3-2
bit 1-0
LCDEN: LCD Driver Enable bit
1 = LCD driver module is enabled
0 = LCD driver module is disabled
SLPEN: LCD Driver Enable in Sleep Mode bit
1 = LCD driver module is disabled in Sleep mode
0 = LCD driver module is enabled in Sleep mode
WERR: LCD Write Failed Error bit
1 = LCDDATAn register written while the WA bit of the LCDPS register = 0 (must be cleared in
software)
0 = No LCD write error
Unimplemented: Read as ‘0’
CS<1:0>: Clock Source Select bits
00 = FOSC/256
01 = T1OSC (Timer1)
1x = LFINTOSC (31 kHz)
LMUX<1:0>: Commons Select bits
LMUX<1:0>
Multiplex
00
Static (COM0)
01
1/2 (COM<1:0>)
10
1/3 (COM<2:0>)
11
1/4 (COM<3:0>)
Maximum Number of Pixels
PIC16LF1906
19
38
57
72⁽¹⁾
PIC16LF1904/7
29
58
87
116
Bias
Static
1/2 or 1/3
1/2 or 1/3
1/3
Note 1: On these devices, COM3 and SEG15 are shared on one pin, limiting the device from driving 72 segments.
 2011 Microchip Technology Inc.
Preliminary
DS41569A-page 187