8399 N/B Maintenance

5.2 VIA K8N800 North Bridge(4)

Dedicated Digital Video Port 0 (DVP0) - TV Encoder Interface

 

 

AGP-Multiplexed Digital Video Port 1 (GDVP1) – TMDS Interface

Signal Name

Pin #

I/O

Signal Description

 

 

 

Signal Name

AGP Name

Pin #

I/O

Signal Description

TVD11 / DVP0D11

M1

O

TV Encoder 0 Data.

 

 

 

GDVP1D11

GC#BE3

 

AC7

O

Data.

TVD10 / DVP0D10

M3

 

 

 

 

 

 

GDVP1D10

GD26

 

 

AE6

 

 

TVD9 / DVP0D9

M2

 

To configure DVP0 as a TV Out interface port, pins

 

 

GDVP1D9

GD24

 

 

AF6

 

 

TVD8 / DVP0D8

L1

 

DVP0D[6:5] must be strapped high.

 

 

GDVP1D8

GD30

 

 

AE4

 

 

TVD7 / DVP0D7

M4

 

 

 

 

 

 

GDVP1D7

GD28

 

 

AF5

 

 

TVD6 / DVP0D6

L3

 

Note: One TV Encoder interface is supported through either

 

 

GDVP1D6

GD29

 

 

AF4

 

 

TVD5 / DVP0D5

L2

 

DVP0 or GDVP1.

 

 

 

GDVP1D5

GSBA4#

 

AF2

 

 

TVD4 / DVP0D4

K1

 

 

 

 

 

 

GDVP1D4

GD27

 

AD5

 

 

TVD3 / DVP0D3

L4

 

 

 

 

 

 

GDVP1D3

GSBA5#

AD3

 

 

TVD2 / DVP0D2

K3

 

 

 

 

 

 

GDVP1D2

GSBSTBS

 

AE1

 

 

TVD1 / DVP0D1

K2

 

 

 

 

 

 

GDVP1D1

GSBSTBF

 

AF1

 

 

TVD0 / DVP0D0

J1

 

 

 

 

 

 

GDVP1D0

GSBA2#

AD1

 

 

TVHS / DVP0HS

N4

O

TV Encoder 0 Horizontal Sync. Internally pulled down.

 

 

GDVP1HS

GSBA3#

AD2

O

Horizontal Sync.

TVVS / DVP0VS

N3

O

TV Encoder 0 Vertical Sync. Internally pulled down.

 

 

GDVP1VS

GSBA0#

 

AC2

O

Vertical Sync.

TVDE / DVP0DE

N1

O

TV Encoder 0 Display Enable. Internally pulled down.

Secret

GSBA1#

 

AC3

O

Data Enable.

 

 

GDVP1DE

 

TVCLKR / DVP0DET

P4

I

TV Encoder 0 Clock Return. Input from TV encoder.

 

 

G VP1DET

GD31

 

AD4

I

Display Detect. If VGA register 3C5.3E[0] = 1,

 

 

 

Internally pulled

 

 

 

Document

 

 

3C5.1A[4] will read 1 if a display is connected.

 

 

 

down.

 

 

 

 

 

GSBA6#

 

AE3

O

Tie to GND if not used.

TVCLK / DVP0CLK

P3

O

TV Encoder 0 Clock Out. Output to TV encoder. In ernally

 

 

GDVP1CLK

 

Clock.

 

 

 

pulled

 

MiTac

 

GDVP1CLK#

GSBA7#

 

AF3

O

Clock Complement.

 

 

 

down.

 

 

 

 

The GDVP1 Digital Video Port is supported through multiplexing its interface signal pins with AGP

The above pins may be connected to an external TV Encoder chip such as

VIA VT1622A or

 

 

 

 

pins. GDVP1 can be configured as either a TMDS transmitter interface port or a TV Encoder interface

VT1622AM for driving a TV set.

 

 

 

 

 

 

 

 

 

 

 

 

port. (see the TMDS Transmitter Interface and TV Encoder Interface pin lists below for details).

I/O pads for the pins on this page are powered by VCCGFX (3.3V I/O).

 

 

 

 

 

 

 

 

 

 

 

 

 

Analog Power / Ground

 

 

 

 

 

 

Reference Voltages

 

 

 

 

 

Signal Name

Pin #

I/O

Signal Description

 

 

 

Signal Name

Pin #

I/O

Signal Description

VCCATX

C22

P

 

Confidential

VLVREF

AF21

P

V-Link Voltage Reference. 0.625V ±2% derived using a

Analog Power for HT Transmit. 3.3V ±5%. Connect

 

 

 

 

 

through a ferrite bead for isolation of digital switching noise.

 

 

 

 

 

resistive voltage divider (3K §Ù to

GNDATX

C21

P

Analog Ground for HT Transmit. Connect to main ground

 

 

 

 

 

2.5V and 1K §Ù to ground). See Design Guide for details.

 

 

 

plane through a ferrite bead for isolation of digital switching

 

 

AGPVREF[1:0]

AC6,

P

AGP Voltage Reference. 0.5 VCCQQ (0.75V) for AGP 2.0

 

 

 

noise.

 

 

 

 

 

AC13

 

(4x transfer mode) and 0.23 VCCQQ (0.35V) for AGP 3.0 (8x

VCCARX

E25

P

Analog Power for HT Receive. 3.3V ±5%. Connect through

 

 

 

 

 

transfer mode). See the Design Guide for additional

 

 

 

a ferrite bead for isolation of digital switching noise.

 

 

 

 

 

information and circuit implementation details..

GNDARX

E26

P

Analog Ground for HT Receive. Connect to main ground

 

 

 

 

 

 

 

 

 

 

 

 

plane through a ferrite bead for isolation of digital switching

 

 

 

 

 

 

 

 

 

 

 

 

noise.

 

 

 

 

 

 

 

 

 

 

 

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