M38C31M7AXXXFS datasheet(49/224 Pages) RENESAS

部件名	M38C31M7AXXXFS

功能描述	8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 38000 SERIES

PDF	224 Pages

Scroll/Zoom	100%

制造商	RENESAS [Renesas Technology Corp]

网页	http://www.renesas.com

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49 / 224 page

38C3 Group User’s Manual

HARDWARE

1-34

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. 32 LCD display RAM map

FUNCTIONAL DESCRIPTION

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

5432

SEG12

SEG14

SEG16

SEG18

SEG20

SEG22

SEG24

SEG26

SEG28

SEG30

SEG0

SEG2

SEG4

SEG6

SEG8

SEG10

COM3

COM0

COM2 COM1 COM0 COM3 COM2 COM1

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