3822 datasheet(34/59 Pages) RENESAS

34 / 59 page

Rev.1.20

Dec 24, 2003

page 34 of 57

3822 Group (A ver.)

LCD Display RAM

Address 004016 to 004F16 is the designated RAM for the LCD dis-

play. When “1” are written to these addresses, the corresponding

segments of the LCD display panel are turned on.

Fig. 32 LCD display RAM map

LCD Drive Timing

The LCDCK timing frequency (LCD drive timing) is generated in-

ternally and the frame frequency can be determined with the

following equation;

f(LCDCK) =

Frame frequency =

(frequency of count source for LCDCK)

(divider division ratio for LCD)

f(LCDCK)

(duty ratio)

Bit

Address

004016

004116

004216

004316

004416

004516

004616

004716

004816

004916

004A16

004B16

004C16

004D16

004E16

004F16

COM3

COM0

COM1

COM2

COM3

COM0

COM1

COM2

SEG1

SEG3

SEG5

SEG7

SEG9

SEG11

SEG13

SEG15

SEG17

SEG19

SEG21

SEG23

SEG25

SEG27

SEG29

SEG31

SEG0

SEG2

SEG4

SEG6

SEG8

SEG10

SEG12

SEG14

SEG16

SEG18

SEG20

SEG22

SEG24

SEG26

SEG28

SEG30

3822 Datasheet(PDF) 34 Page - Renesas Technology Corp

3822 Datasheet(HTML) 34 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59

Datasheet Download

Link URL