Instruction decoder
About the Instruction decoder PCB
Instruction decoder is an open source PCB design by cherry-takuan, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 209.6 × 154.9 mm, with 133 components from 10 distinct parts.
Other key parts include the State_hold_unit and CD74HC00. By type, the board carries 88 ICs, 30 capacitors, 9 connectors, 3 diodes and 3 resistors.
From the project
NLP(Nand Logic Processor)のリポジトリ
ALU制御回路回路はALUを操作するための制御信号生成し，また演算結果からフラグを生成する機能を持っています。 #### ALU本体 aluc
最新バージョン : v1.1 *** ### レジスタファイル レジスタファイルとは，プロセッサ内で一時的に記憶するレジスタと呼ばれる回路を複数集積したものです。NLP-16Aでは16bitのデータを記憶可能なレジスタを16本持っています。
汎用レジスタは5本で，残りのレジスタは何らかの役割を持ち，単純な記憶以外の動作も行うことがあります。
最新バージョン : v1.2 *** ### 入出力 NLP-16Aは16 bit x 64 kwordの1つの入出力ポートを持っています。 内部的にはレジスタの一つとしてアクセス可能な構造になっています。
主記憶及び外部デバイスとの接続に使用されます。 #### 外部バス制御 Busterminator
Main components on the Instruction decoder
Instruction decoder bill of materials (BOM)
133 components, 10 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 48 | State_hold_unit | PinSocket_1x05_P2.54mm_Vertical | U1, U2, U3, U4, U5, U6, U7, U8 +40 |
| 40 | CD74HC00 | DIP-14_W7.62mm | U49, U50, U51, U52, U53, U54, U55, U56 +32 |
| 2 | Conn_02x10_Odd_Even | PinHeader_2x10_P2.54mm_Horizontal | J1, J2 |
| 1 | Screw_Terminal_01x02 | TerminalBlock_bornier-2_P5.08mm | J3 |
| 2 | Conn_02x10_Counter_Clockwise | PinHeader_2x10_P2.54mm_Horizontal | J4, J5 |
| 4 | Conn_01x02_Female | PinSocket_1x02_P2.54mm_Vertical | J6, J7, J8, J9 |
| 3 | LED | LED_D3.0mm | D1, D2, D3 |
| 29 | C | C_Disc_D7.0mm_W2.5mm_P5.00mm | C1, C2, C3, C4, C5, C6, C7, C8 +21 |
| 1 | C_Polarized | CP_Radial_D5.0mm_P2.50mm | C30 |
| 3 | R | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2, R3 |
Instruction decoder design files
The KiCad project lives in the cherry-takuan/nlp repository on GitHub; these links point at the commit this page was built from.
Instruction decoder: common questions
How big is the Instruction decoder PCB?
The Instruction decoder measures 209.6 × 154.9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Instruction decoder?
133 components, from 10 distinct parts. The full bill of materials is listed on this page.
Where can I download the Instruction decoder design files?
From the cherry-takuan/nlp repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Instruction decoder design in my own project?
Yes, under the terms of its CC-BY-SA-4.0 license, which cherry-takuan chose for the repository.
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