SM34020APCM40
Features of
1M VRAMs
- Load Write Mask
- Load Color Mask
- Block Write
- Write Using the Write Mask
D Flexible Multiprocessor Interface D 144-Pin PCM Quad Flat Package (QFP)
108 109
PCM PACKAGE ( TOP VIEW )
73 72
144 1
37 36 description
The SM34020APCM40 graphics system processor (GSP) is the second generation of an advanced high-performance CMOS 32-bit microprocessor optimized for graphics display systems. With a built-in instruction cache (I-cache), the ability to simultaneously access memory and registers, and an instruction set designed to expedite raster graphics operations, the SM34020APCM40 provides user-programmable control of the CRT interface, as well as the memory interface [both standard DRAM and multiport video RAM (VRAM)]. The 4-gigabit (512-megabyte) physical address space is addressable on bit boundaries using variable width data fields (1 to 32 bits). Additional graphics addressing modes support 1-, 2-, 4-, 8-, 16-, and 32-bit-wide pixels.
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