PIC16C925TSLASHCL datasheet(92/182 Pages) MICROCHIP

部件名	PIC16C925T/CL

功能描述	64/68-Pin CMOS Microcontrollers with LCD Driver

PDF	182 Pages

Scroll/Zoom	100%

制造商	MICROCHIP [Microchip Technology]

网页	http://www.microchip.com

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92 / 182 page

PIC16C925/926

DS39544A-page 90

Preliminary

 2001 Microchip Technology Inc.

11.1.2

MULTIPLEX TIMING GENERATION

The timing generation circuitry will generate one to four

common clocks based on the display mode selected.

The

mode

specified by

bits

LMUX1:LMUX0

(LCDCON<1:0>). Table 11-1 shows the formulas for

calculating the frame frequency.

TABLE 11-1:

FRAME FREQUENCY

FORMULAS

TABLE 11-2:

APPROXIMATE FRAME

FREQUENCY (IN Hz)

USING TIMER1 @ 32.768 kHz

OR FOSC @ 8 MHz

TABLE 11-3:

APPROXIMATE FRAME

FREQUENCY (IN Hz)

USING INTERNAL RC OSC

@ 14 kHz

Multiplex

Frame Frequency =

Static

Clock source/(128 * (LP3:LP0 + 1))

1/2

Clock source/(128 * (LP3:LP0 + 1))

1/3

Clock source/(96 * (LP3:LP0 + 1))

1/4

Clock source/(128 * (LP3:LP0 + 1))

LP3:LP0

Static

1/2

1/3

1/4

114

LP3:LP0

Static

1/2

1/3

1/4

109

146

109

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