Renesas PCA4738F-80A Manual de usuario descargar pdf (Pagina 31)

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS

38C3 Group

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 seg-

ments of the LCD display panel are turned on.

LCD Drive Timing

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

nally and the frame frequency can be determined with the following

equation;

(frequency of count source for LCDCK)

(divider division ratio for LCD)

f(LCDCK)=

f(LCDCK)

duty ratio

Frame frequency=

Fig. 30 LCD display RAM map

Bit

Address

004616

004716

004816

004916

004A16

004B16

004C16

004D16

004E16

004F16

SEG13

SEG15

SEG17

SEG19

SEG21

SEG23

SEG25

SEG27

SEG29

SEG31

004016

004116

004216

004316

004416

004516

SEG1

SEG3

SEG5

SEG7

SEG9

SEG11

76543210

SEG12

SEG14

SEG16

SEG18

SEG20

SEG22

SEG24

SEG26

SEG28

SEG30

SEG0

SEG2

SEG4

SEG6

SEG8

SEG10

COM3 COM0COM2 COM1 COM0 COM3 COM2 COM1

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 63 64

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