I

Input Signals (Write Mode) (continued)

OTHERS

Address Dec (HEX)

Description

Data (Bits)

Comments

15 (0F)

Volume

6

XX00 0000 = 0.5V

XX11 1111 = 5V

16 (10)

Mute

1

XXXX XXXS

0 = Mute not active

1 = Mute active

16 (10)

AV Switch Selection

2

XXXX XSSX

00 = TV mode

01 = not allowed

10 = not allowed

11 = External (AV) mode

17 (11)

Only for Test

6

XXSS SSSS

00 0000 = Test mode not active

Output Signals (Read Mode)

READ REGISTER

Description

Data (Bits)

Comments

Field Frequency

1

XXXX XXXS

1 = 50Hz

0 = 60Hz

Video Identification

1

XXXX XXSX

1 = No Identification

0 = Video Identification

SVHS Status

1

XXXX XSXX

1 = No SVHS

0 = SVHS

Standard Status

3

XXSS SXXX

111 = PAL/XTAL1 (4.43MHz)

110 = NTSC/XTAL1

101 = not to be used

011 = PAL/XTAL2 (3.58MHz)

010 = NTSC/XTAL2

X00 = Color off

Circuit Identification

2

00XX XXXX

11 = STV2118B

10 = STV2116A

01 = STV2112B

00 = STV2216

Bus Register Initial Conditions (Not used bits are preset to ”0”)

Address

Dec (HEX)

Data Initial

Value

Comments

0 (00)

XX01 0000

Mid. contrast ; Not used

1 (01)

XX10 0000

Mid. saturation

2 (02)

XX01 0000

Mid. brightness ; Blanking : normal mode

3 (03)

XX10 0000

Mid. RED drive adjust

4 (04)

XX10 0000

Mid. RED cut-off adjust

5 (05)

XX10 0000

Mid. GREEN drive adjust

6 (06)

XX10 0000

Mid. GREEN cut-off adjust

7 (07)

XX10 0000

Mid. BLUE drive adjust

8 (08)

XX10 0100

Mid. sharpness ; Blue screen not active ; External crystal selection in auto mode ;

Black stretch on

9 (09)

XX10 0000

Mid. hue

10 (0A)

XX00 0110

Auto search color standard ; no SVHS ; XTAL1 = 4.43MHz

11 (0B)

XX10 0000

Mid. horizontal shift

12 (0C)

XX10 0000

Mid. vertical amplitude

13 (0D)

XX00 0100

Mid. vertical position ; Auto search field frequency ; HOUT : normal mode

14 (0E)

XX00 0000

PLL1 time constant : normal mode ; Interlace ; 4/3 selection ; chroma gain = +0dB ; no flesh

15 (0F)

XX10 0000

Mid. volume

16 (10)

XX00 0000

Mute not active ; INT/FM IF mode ; coring on ; Cut-off pulses on lines 23/24/25 in 50Hz or

lines 18/19/20 in 60Hz ; narrow flesh characteristic

17 (11)

XX00 0000

Test mode not active

STV2216

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