PIC16LF1902-ESS View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16LF1902-ESS

28-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt XLP Technology

Microchip Technology 

PIC16LF1902/3

REGISTER 18-3: LCDREF: LCD REFERENCE VOLTAGE CONTROL REGISTER

R/W-0/0

LCDIRE

bit 7

U-0

R/W-0/0

U-0

R/W-0/0

R/W-0/0

R/W-0/0

—

LCDIRI

—

VLCD3PE VLCD2PE VLCD1PE

U-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

LCDIRE: LCD Internal Reference Enable bit

1 = Internal LCD Reference is enabled and connected to the Internal Contrast Control circuit

0 = Internal LCD Reference is disabled

bit 6

Unimplemented: Read as ‘0’

bit 5

LCDIRI: LCD Internal Reference Ladder Idle Enable bit

Allows the Internal FVR buffer to shut down when the LCD Reference Ladder is in power mode ‘B’

1 = When the LCD Reference Ladder is in power mode ‘B’, the LCD Internal FVR buffer is disabled.

0 = The LCD Internal FVR Buffer ignores the LCD Reference Ladder Power mode.

bit 4

Unimplemented: Read as ‘0’

bit 3

VLCD3PE: VLCD3 Pin Enable bit

1 = The VLCD3 pin is connected to the internal bias voltage LCDBIAS3(1)

0 = The VLCD3 pin is not connected

bit 2

VLCD2PE: VLCD2 Pin Enable bit

1 = The VLCD2 pin is connected to the internal bias voltage LCDBIAS2(1)

0 = The VLCD2 pin is not connected

bit 1

VLCD1PE: VLCD1 Pin Enable bit

1 = The VLCD1 pin is connected to the internal bias voltage LCDBIAS1(1)

0 = The VLCD1 pin is not connected

bit 0

Unimplemented: Read as ‘0’

Note 1: Normal pin controls of TRISx and ANSELx are unaffected.

 2011 Microchip Technology Inc.

Preliminary

DS41455A-page 147

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