84C44X datasheet(26/38 Pages) PHILIPS

26 / 38 page

October 1994

Philips Semiconductors

Product speciﬁcation

8-bit microcontrollers with OSD and VST

84C44X; 84C64X; 84C84X

12.7

OSD display position

12.7.1

VERTICAL POSITION

The line number of the vertical start position for:

• Row 0 is 4 × (VP00 → VP05)

• Row 1 is 4 × (VP10 → VP15).

Where:

• (VP00 → VP05) = the decimal value of VP00 → VP05

• (VP10 → VP15) = the decimal value of VP10 → VP15.

The character height in:

• Row 0 is H0 and is a function of the number of dots per

character and the state of the size control bits

SZ00 and SZ01

• Row 1 is H1 and is a function of the number of dots per

character and the state of the size control bits

SZ10 and SZ11.

Row 0 and Row 1 must not overlap each other and

therefore: VP1

≥ (VP0 + H0); see Fig.25.

The four possible character heights are shown in Table 23.

12.7.2

HORIZONTAL POSITION

The horizontal start position (HP) of,

• Row 0:

• Row 1:

Where:

• (HP00 → HP05) = the decimal value of HP00 → HP05

and (HP00

→ HP05) > 10

• (HP10 → HP15) = the decimal value of HP10 → HP15

and (HP10

→ HP15) > 10

• t

OSCD = one OSCD clock period.

Therefore for both Row 0 and Row 1,

HP0, HP1

≥ 45 × t

OSCD.

HP0

HP00

HP05

→

(

)

OSCD

HP1

HP10

HP15

→

(

)

OSCD

handbook, full pagewidth

ROW 0 CHARACTERS

VP0

HP0

HP1

VP1

MCD183

ROW 1 CHARACTERS

Fig.25 Display position.

Fig.26 Background versus no background.

handbook, halfpage

with background

without background

MCD182

84C44X датащи(PDF) 26 Page - NXP Semiconductors

84C44X датащи(HTML) 26 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38

датащи скачать

ссылки URL