PIC18F6490-E/PT Microchip Technology, PIC18F6490-E/PT Datasheet - Page 260

• Manufacturer Part Number: PIC18F6490-E/PT
• Description: IC PIC MCU FLASH 16KX16 64TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F6490-E/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, LCD, POR, PWM, WDT
• Number Of I /o: 50
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 64-TFQFP
• For Use With: DM163028 - BOARD DEMO PICDEM LCD
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

PIC18F6390/6490/8390/8490
22.1
The LCD driver module has 32 registers:
• LCD Control Register (LCDCON)
• LCD Phase Register (LCDPS)
• Six LCD Segment Enable Registers
• 24 LCD Data Registers
The LCDCON register, shown in Register 22-1,
controls the overall operation of the module. Once the
module is configured, the LCDEN (LCDCON<7>) bit is
REGISTER 22-1:
DS39629C-page 258
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6
bit 5
bit 4
bit 3-2
bit 1-0
(LCDSE5:LCDSE0)
(LCDDATA23:LCDDATA0)
LCDEN
R/W-0
LCD Registers
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 = LCDDATAx register written while LCDPS<WA> = 0 (must be cleared in software)
0 = No LCD write error
Unimplemented: Read as ‘0’
CS1:CS0: Clock Source Select bits
00 = (F
01 = T13CKI (Timer1)/32
1x = INTRC (31.25 kHz)/32
LMUX1:LMUX0: Commons Select bits
LMUX1:LMUX0
SLPEN
R/W-0
LCDCON: LCD CONTROL REGISTER
OSC
00
01
10
11
/4)/8192
C = Clearable Only bit
W = Writable bit
‘1’ = Bit is set
WERR
R/C-0
1/2 (COM1:COM0)
1/3 (COM2:COM0)
1/4 (COM3:COM0)
Static (COM0)
Multiplex
U-0
—
(PIC18F6X90)
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
Number of
Maximum
Pixels
R/W-0
used to enable or disable the LCD module. The LCD
panel can also operate during Sleep by clearing the
SLPEN (LCDCON<6>) bit.
The
configures the LCD clock source prescaler and the type
of waveform, Type-A or Type-B. Details on these
features are provided in Section 22.2 “LCD Clock
Source Selection”, Section 22.3 “LCD Bias Types”
and Section 22.8 “LCD Waveform Generation”.
128
CS1
32
64
96
LCDPS
(PIC18F8X90)
Number of
Maximum
R/W-0
Pixels
CS0
144
192
48
96
register,
© 2007 Microchip Technology Inc.
x = Bit is unknown
shown
LMUX1
R/W-0
1/2 or 1/3
1/2 or 1/3
Static
Bias
1/3
in
Register 22-2,
LMUX0
R/W-0
bit 0