MiTAC 8355 service manual General and Interfacing Features

8355 N/B MAINTENANCE

1.2.4.1 General and Interfacing Features

32-bit PCI bus (Rev 2.2), 3.3 V with bus mastering support.

Comprehensive AGP support including 1.5 Volt (AGP 4X) and 0.8 Volt (AGP8X) mode operation, sideband addressing, AGP texturing (direct memory execution), and support for AGP reads and writes, including fast write capability.

Single channel 128/64-bit memory interface using SGRAM or SDRAM to build 8/16/32/64 MB configurations. Operating frequency is 67MHz minimum to 350MHz maximum, SDR or DDR.

16-bit Zoom Video port.

Support for ROM or Flash RAM parallel or serial video BIOS.

Two independent CRT controllers to support two asynchronous simultaneous display paths.

Integrated DAC for CRT with stereoscopic display support.

Integrated second DAC for the second CRT (TV) support.

Integrated LVDS interface: single and dual pixel per clock, up to 85MHz per channel.

LCD panel detection.

Integrated TMDS transmitter running up to 165MHz (when matched with coherently clocked receiver; otherwise, 135MHz) for support up to 1600x1200 at 60Hz. Fully compliant with DVI and DFP connection standards. Ratiometric expansion.

Support for external TMDS transmitter via 24-bit digital output to drive most popular TMDS transmitters up to 165MHz frequency.

Internal and external Spread Spectrum support.

Integrated enhanced TV encoder with 10-bit DAC (shared between second CRT DAC and TV).

20