STG3005A2S STMicroelectronics, STG3005A2S Datasheet - Page 59
STG3005A2S
Manufacturer Part Number
STG3005A2S
Description
128-BIT 3D MULTIMEDIA ACCELERATOR
Manufacturer
STMicroelectronics
Datasheet
1.STG3005A2S.pdf
(85 pages)
- Current page: 59 of 85
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128-BIT 3D MULTIMEDIA ACCELERATOR
11.4 SERIAL INTERFACE
The RIVA128ZX serial interface supports connec-
tion to DDC1/2B, DDC2AB and DDC2B+ compli-
ant monitors and to serial interface controlled vid-
eo decoders and tuners. Supported video decoder
chips include Philips SAA7110, SAA7111A, ITT
3225 and Samsung KS0127. For details of ad-
dress locations and protocols applying to specific
parts refer to the appropriate manufacturer’s
datasheet.
The serial interface in RIVA128ZX requires opera-
tion under software control to provide emulation of
the interface standard. RIVA128ZX can act as a
master for communication with slave devices like
those mentioned above. It also acts as a master
when interfacing to a DDC1/2 compatible monitor.
Although it is not Access.bus compatible, it can
communicate with a DDC2AB compatible monitor
via the DDC2B+ protocol. (No other Access.bus
peripherals can be attached although other serial
devices may co-reside on the DDC bus). The
RIVA128ZX can clock stretch incoming messages
in the event that the software handler is interrupted
by another task.
RIVA128ZX
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