This text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here in

white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader. white to force landscape pages to be ...

Notes

1. X = don’t care.

2. SDA is left at high-impedance by the microcontroller during the read acknowledge.

23

‘read data’: 8

× SCL + master acknowledge; note 2

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

Ack

8

× SCL; content loaded into interface during previous

acknowledge cycle is shifted out over SDA; MSB is DB7; during

master acknowledge content of DDRAM address 01 is loaded

XXXXXXXX

0

PHILIPS

24

‘read data’: 8

× SCL + master acknowledge; note 2

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

Ack

8

× SCL; code of letter ‘H’ is read first; during master

010010000

PHILIPS

25

‘read data’: 8

× SCL + no master acknowledge; note 2

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

Ack

interface register is shifted out no internal action is performed;

no new data is loaded to the interface register, Data Register

(DR) is not updated, Address Counter (AC) is not incremented

and cursor is not shifted

010010011

PHILIPS

26

PHILIPS

STEP

INSTRUCTION

DISPLAY

OPERATION