HD6433832S Datasheet, PDF(328/560 Page) Renesas Technology Corp – single-chip microcomputers

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HD6433832S Datasheet, PDF (328/560 Pages) Renesas Technology Corp – single-chip microcomputers

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13.1.3 Pin Configuration

Table 13.1 shows the output pins assigned to the LCD controller/driver.

Table 13.1 Pin Configuration

Name

LCD segment output

LCD common output

External segment

expansion signal

LCD power supply

Abbrev.

SEG40 to

SEG1

COM4 to

COM1

CL1

CL2

M

DO

V1, V2, V3

I/O

Output

Output

Output

Output

Output

Output

Input

Function

Liquid crystal segment driver pins. All pins can be

programmed also as ports.

Liquid crystal common driver pins. Parallel

connection is possible at static and 1/2 duty.

Display data latch clock; doubles as SEG40

Display data shift clock; doubles as SEG39

LCD alternating signal; doubles as SEG37

Serial display data; doubles as SEG38

For external connection to bypass capacitor or for

use of external power supply circuit

13.1.4 Register Configuration

Table 13.2 shows the register configuration of the LCD controller/driver.

Table 13.2 Register Configuration

Name

LCD port control register

LCD control register

LCD RAM

Note: * Value after reset.

Abbrev. R/W

LPCR

R/W

LCR

R/W

â

R/W

Initial Value

H'00

H'80

Not fixed

Address

H'FFC0

H'FFC1

H'F740 to H'F77F*

313

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