PIC18F6490-E/PT Microchip Technology, PIC18F6490-E/PT Datasheet - Page 262

• 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
The
functions of the port pins. Setting the segment enable
bit for a particular segment configures that pin as an
LCD driver. There are six LCD Segment Enable
registers listed in Table 22-1. The prototype LCDSEx
register is shown in Register 22-3.
TABLE 22-1:
.
REGISTER 22-3:
DS39629C-page 260
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
Note:
SE(n + 7)
R/W-0
LCDSE5:LCDSE0
Register
LCDSE0
LCDSE1
LCDSE2
LCDSE3
LCDSE4
LCDSE5
The LCDSE5:LCDSE4 registers are not
implemented in PIC18F6X90 devices.
SE(n + 7):SE(n): Segment Enable bits
For LCDSE0: n = 0
For LCDSE1: n = 8
For LCDSE2: n = 16
For LCDSE3: n = 24
For LCDSE4: n = 32
For LCDSE5: n = 40
1 = Segment function of the pin is enabled, digital I/O is disabled
0 = I/O function of the pin is enabled
SE(n + 6)
LCDSE REGISTERS AND
ASSOCIATED SEGMENTS
R/W-0
LCDSEx: LCD SEGMENTx ENABLE REGISTER
registers
W = Writable bit
‘1’ = Bit is set
SE(n + 5)
R/W-0
Segments
23:16
31:24
39:32
47:40
15:8
configure
7:0
SE(n + 4)
R/W-0
the
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
SE(n + 3)
R/W-0
Once the module is initialized for the LCD panel, the
individual bits of the LCDDATA23:LCDDATA0 registers
are cleared or set to represent a clear or dark pixel,
respectively. Specific sets of LCDDATA registers are
used with specific segments and common signals.
Each bit represents a unique combination of a specific
segment connected to a specific common. Individual
LCDDATA bits are named by the convention “SxxCy”,
with “xx” as the segment number and “y” as the
common number. The relationship is summarized in
Table 22-2. The prototype LCDDATAx register is
shown in Register 22-4.
Note:
Writing into the registers, LCDDATA4,
LCDDATA5, LCDDATA10, LCDDATA11,
LCDDATA16, LCDDATA17, LCDDATA22
and LCDDATA23, in PIC18F6X90 devices
will not affect the status of any pixel and
these registers can be used as General
Purpose Registers.
SE(n + 2)
R/W-0
© 2007 Microchip Technology Inc.
x = Bit is unknown
SE(n + 1)
R/W-0
R/W-0
SE(n)
bit 0