Epson SED1278F/D Dokumentacja Pobierz pdf (Strona 21)

EPSON 9–19

SED1278

SED1278

• Software Initialization (4-bit MPU bus, fOSC = 250 kHz)

[1]

000011

DB7 RS R/W E

··

DB4

30 ms or more

4.1 ms or more

100 µs or more

40 µs or more

System set

System set

[2]

[3]

[4]

[6]

[8]

000011

DB7 RS R/W E

··

DB4

000011

DB7 RS R/W E

··

DB4

System set

[7]

NF **

0010

DB7

··

DB4

40 µs or more

System set

[5]

000010

DB7 RS R/W E

··

DB4

BF=0

(High-order)

(Low-order)

(High-order)

(Low-order)

(High-order)

(Low-order)

BF 0 1 1

DB7 RS R/W E

··

DB4

Busy flag

BF=0

BF=1

BF=1

Busy flag

Power-on

System set

A

CC

011

00

RS R/W E

00

A

CC

BF 0 1 1

DB7 RS R/W E

··

DB4

A

CC

011

A

CC

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