パッケージ情報
| パッケージ | ピン数 CPGA (GB) | 145 |
| 動作温度範囲 (℃) -55 to 125 |
| パッケージ数量 | キャリア 21 | JEDEC TRAY (5+1) |
SMJ34020A の特徴
- Class B High-Reliability Processing
- 1-µm CMOS Technology
- Military Operating Temperature Range
–55°C to 125°C - SMJ34020A-32/40
125/100-ns Instruction Cycle Time - Fully Programmable 32-Bit General-Purpose Processor With 512-Megabyte Linear Address Range (Bit Addressable)
- Second-Generation Graphics System Processor
- Object-Code Compatible With the SMJ34010
- Enhanced Instruction Set
- Optimized Graphics Instructions
- Coprocessor Interface
- Pixel Processing, XY Addressing, and Window Checking Built Into the Instruction Set
- Programmable 1-, 2-, 4-, 8-, 16-, or 32-Bit Pixel Size With 16 Boolean and Six Arithmetic Pixel Processing Options (Raster Ops)
- 512-Byte LRU On-Chip Instruction Cache
- Optimized DRAM/VRAM Interface
- Page-Mode for Burst Memory Operations
- Dynamic Bus Sizing (16-Bit and 32-Bit Transfers)
- Byte-Oriented CAS\ Strobes
- Flexible Host Processor Interface
- Supports Host Transfers
- Direct Access to All of the SMJ34020A Address Space
- Implicit Addressing
- Prefetch for Enhanced Read Access
- Programmable CRT Control
- Composite Sync Mode
- Separate Sync Mode
- Synchronization to External Sync
- Direct Support for Special Features of 1M VRAMs
- Load Write Mask
- Load Color Mask
- Block Write
- Write Using the Write Mask
- Flexible Multi-Processor Interface
- Packaging Options
- 145-Pin Grid Array Ceramic Package (GB Suffix)
- 132-Pin Ceramic Quad Flat Pack (Unformed Lead) (HT Suffix)
SMJ34020A に関する概要
The SMJ34020A 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, the ability to simultaneously access memory and registers, and an instruction set designed to expedite raster graphics operations, the SMJ34020A provides user-programmable control of the CRT interface as well as the memory interface (both standard DRAM and multiport video RAM). 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.