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SM34020AGBS40 bảng dữ liệu(PDF) 8 Page - Texas Instruments |
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SM34020AGBS40 bảng dữ liệu(HTML) 8 Page - Texas Instruments |
8 / 94 page SM34020A GRAPHICS SYSTEM PROCESSOR SGUS057 − FEBRUARY 2005 8 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 architecture (continued) functional block diagram Register HA5 − HA31 HBS0 − HBS3 HCS HREAD HWRITE HINT HRDY HDST HOE GI R0 R1 EMU0 EMU1 EMU2 EMU3 CLKIN LCLK1 LCLK2 RESET, LINT1, LINT2 LAD0 − LAD31 RCA0 − RCA12 DDIN DDOUT RAS CAS0 − CAS3 WE TR /QE ALTCH SF PGMD SIZE16 LRDY BUSFLT CAMD VSYNC HSYNC CSYNC / HBLNK CBLNK / VBLNK VCLK SCLK 27 4 32 13 Host Address Latch Host Interface Multi- Processor Interface Emulation Interface System Clocks Buffer/ MUX Bus DRAM/ VRAM Interface Bus Interface Video Timing and Control Local Memory and Bus Timing I/O LRU Regs ALU Barrel Shifter Microcontrol ROM Reset and Interrupts Control Page-mode Register Cache PC ST SP Decode 4 Register File A Register File B register files Boolean, arithmetic, pixel-processing, byte, and field-move instructions operate on data within the general-purpose register files. The SM34020A contains two register files of fifteen 32-bit registers and a system stack pointer (SP). The SP is addressed in both register file A and register file B as a sixteenth register. Transfers between registers and memory are facilitated using a complete set of field move instructions with selectable field sizes. The 15 general-purpose registers in register file A are used for high-level language support and assembly-language programming. The 15 registers in register file B are dedicated to special functions during PIXBLTS and other pixel operations but can be used as general-purpose registers at other times. stack pointer (SP) The stack pointer is a dedicated 32-bit internal register that points to the top of the system stack. program counter (PC) The SM34020A 32-bit program counter register points to the next instruction-stream word to be fetched. Since instruction words are aligned to 16-bit boundaries, the four LSBs of the PC are always zero. Not Recommended for New Designs |
Số phần tương tự - SM34020AGBS40 |
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Mô tả tương tự - SM34020AGBS40 |
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