Multimedia Interface Connector; Figure E-5. Multimediai; Table E-7. Multimedia Interface - Compaq Deskpro EP 6233 Technical Reference Manual

Appendix E ATI RAGE IIC Graphics Card
E.6.3 MULTIMEDIA INTERFACE CONNECTOR
A multimedia interface is provided through a 40-pin header that includes the VESA standard
feature (VSFC) connector (also known as the VGA pass-through connector) and additional signal
interface. The interface can operate in one of the following three modes:
VSFC Mode – The VESA Standard Feature Connector (VFSC) mode supports an overlay
peripheral such as an MPEG or TV card. This mode, available in all VGA modes and accelerated
modes, receives video data through the VSFC I/F and overlays the data onto the graphics display
(display clock < 80 Hz).
DVS Mode – The Digital Video Stream (DVS) mode supports connection to a video decoder.
MPP Mode – The Multimedia Peripheral Port (MPP) mode supports data streaming from Host
memory out of the multimedia interface.
Figure E-5 shows the multimedia connector.
Figure E–5. Multimedia Interface Connector (40-Pin Header P1)
Table E–7. Multimedia Interface Connector Pinout
Pin Signal
Z1 GND
Z2 GND
Z3 GND
Z4 EVIDEO-
Z5 ESYNC-
Z6 EDCLK
Z7 SDA
Z8 GND
Z9 GND
Z10 GND
Z11 GND
Z12 SCL
Z13 --
Z14 --
Z15 + 5 VDC
Z16 RESET-
Z17 SAD6
Z18 RESVD
Z19 A. GND
Z20 AUD R
E-8 Compaq Personal Computers
Multimedia Interface
VESA Standard Feature I/F
Y1
Z1
Table E-7.
Multimedia Interface Connector Pinout
Description
Ground
Ground
Ground
Overlay Enable
External Sync Enable
External Clock Enable
Serial Data
Ground
Ground
Ground
Ground
Serial Clock
KEY
KEY
+5 volts DC
Reset
SA Data Bit 6
Reserved
Ground
Right Audio
Original - March 1998
Y20
Y13
Z12 Z20
Pin Signal
Y1 P0
Y2 P1
Y3 P2
Y4 P3
Y5 P4
Y6 P5
Y7 P6
Y8 P7
Y9 DCLK
Y10 BLANK
Y11 HSYNC
Y12 VSYNC
Y13 GND
Y14 AZY
Y15 SAD3
Y16 SAD7
Y17 SAD5
Y18 REV
Y19 +12 VDC
Y20 AUD L
Description
Pixel Data 0
Pixel Data 1
Pixel Data 2
Pixel Data 3
Pixel Data 4
Pixel Data 5
Pixel Data 6
Pixel Data 7
Pixel Data Clock
DAC Output Blanking
Horizontal Sync
Vertical Sync
Ground
SA Data Bit 3
SA Data Bit 7
SA Data Bit 5
+12 volt DC
Left Audio