BAB 1 PENDAHULUAN
SISTEM LiwatVIEW
S4967 Rev: 2B.31 486 Papan sistem Cache Apa 2/3 Baby AT-ukuran, kanthi PC / AT kompatibel lan nawakake kinerja lan fitur pinunjul.
Kanthi 128K / 256K / 512K / 1M cache memori ing Papan, Papan sistem iki tenan mesin kacepetan dhuwur sing uga cocog kanggo mbangun komputer pribadi majeng utawa workstat-lons.
Papan sistem $4967 Rev:2B.31 486 Cache dirancang karo chipset SIS 85C496/85C497 sing terintegrasi banget. Kanthi chipset iki, mung ana sawetara diskrit
piranti dibutuhake, sing ngidini 4 bank memori diselehake ing Papan. Ukuran memori bisa skala saka 1 MB nganti 255 MB.
FITUR
Papan sistem Cache $4967 Rev:2B.31 486 ndhukung (utawa kalebu) fitur ing ngisor iki:
* Nyokong
Intel 486SX/SX2/DX/DX2,DX4(3.45V),P24D,P24T AMD DX,DX2/DX4(NV8T),OX2/DX4(SVEB) Cyrix SX/DX/DX2,DX2-V66/VB0(3.45V),DX4(3.45V), 15×86 (3.45V) in 25/33/40/SOMHZ
- Dirancang nganggo Chipset SIS 85C496 / 85C497
- Dhukungan 128K / 256K / 512K / 1M 2nd Level Cache
- Dhukungan 4 Bank DRAM. DRAM bisa bul karo elther Single-Sided utawa Double-Sided SIMMs. Memori maksimal nganti 255MB
- RAM bayangan sing dikontrol piranti lunak kanggo sistem lan / utawa BIOS video
- Telung slot bis lokal PCI 32-dicokot, papat slot expansion 16-bk
BAB 2 SISTEM PAPAN LAYOUT
Panggonan S486 Rev: 2B.31
BAB 3 KONFIGURASI HARDWARE
Sadurunge sistem wis siyap kanggo operate, hardware kudu dikonfigurasi kanggo ngidini macem-macem fungsi ing sistem. Kanggo ngatur $ 4967 Rev: 2B.31 sistem Cache
Papan minangka tugas sing gampang, mung sawetara Jumper, konektor, lan soket sing kudu dipilih.
CACIIE MEMORY SOCKET
$ 4967 Rev: 2B.31 Papan sistem Cache ndhukung 2 bank SRAM kang menehi salah siji 126/256K / 512K / 1MB memori cache. Tabel ing ngisor iki nampilake rincian
informasi.
Bank sing cocog kanggo identifikasi bagean kaya ing ngisor iki:
Bank 0 – U9, U11, U19, U24
Bank 1 – U10, U14, U20, U2
Tag =~ U8 –
| Ukuran cache | Cacheable ukuran DRAM (8 bit tag) |
Cacheable ukuran DRAM (7 bit tag) |
| - 64K bita | 16fvw wae 32M-bait 64M bait |
8m byte |
| —128K bita | t6m byte 32m byte |
|
| 256K byte | ||
| 512Kb_yte | 128m byte | 64m byte |
| 1m byte | 255m byte | 128m byte |
Tabel 3-2 Pilihan Ukuran Cache
| Tipe Prosesor | Ll Mode Cache | L2 Mode Cache |
| 4 86SX/DX/DX2/DX4/SL-Enhanced | WT | WT/WB WTNV B |
| P24D/P24T | WT/WB | |
| Cyrix M7/DX4/M1sc | WT/WB | WT/WB |
| Am486DXL/DX2 DX4-100 NV8T | WE | WT/WB |
| Arn486Dr47100/120 SV8B | WI/WS | WT/WB |
Tabel 3-3 Lt / L2 Konfigurasi Cache
| Definisi Siklus Hiiinii–emory | Total Jam ing Host Interface | S0MHz | ||
| 251V1Hz | 33MHz | 40MHz | ||
| Tunggal Waca (L2 Cache Hit) | 2 | 2 | 2 | 2 |
| —-S ri-i-gle-Reacf(12 Cache Miss) | 3 | 4 | 5 | 6 |
| —Teurst-Read (L2 Cache Hit) | 2-1-1-1 | 2-1-1-1 | 3-2-2-2 | 3-2-2-2 |
| urst-Maca (L2 Cache Miss) |
3-2-2-2 | 4-3-3-3 | 5-4-4-4 | 6-5-5-5 |
| -Tulis Tunggal (L2 Cache Hit) | 2 | 2/VVB,3/WT | 3/W6,4/WT | 3/VVB,5NVI |
| Tunggal-Tulis (L2 Cache Miss) |
2 2-1-1-1/WB 3-2-2-2/WT 3-2-2-2 |
3 2-1-1-1/WB 3-2-2-2/WT 3-2-2-2 |
4 3-2-2-2/WB 4-3-3-3/WT |
5 3-2-2-2/WB 5-4-4-4/WT |
| *Burst-Write (U Cache Hit) | ||||
| Burst-Nulis (U Cache Mbak) |
4-3-3-3 | 5-4-4-4 | ||
Tabel 3-4 U Cache / DRAM Pilihan Performance
SHADOW CACHEABLE
UMB (Blok Memori Upper) sing dudu area memori utama minangka standar non-cacheable. Nanging, yen dibayangi, segmen RAM 0C0000-OFFFFFFh bisa di-cache ing cache Level 2 lan Level 1. Saben segmen memori 32K bisa diaktifake kanthi individu supaya bisa di-cache dening cache level sekunder 85C495 lan cache internal CPU. SOKET SIMM
je $4967 Rev: 2B.31 Papan sistem cache bakal ndhukung 4 bank DRAM, Bank 0 lan Bank 1 k 2 lan Bank 3 ing soket SIMM nggunakake SIMM 72-pin : Tipe DRAM bisa 256K, 512K, , 2M, 4M, utawa 16M dening 32/36 bit sisih Single utawa Double sisih Fast Page Mode lan luwih cepet ing BONs.
panggunaan modul DRAM 256K, 512K, 1M, 2M, 4M utawa 16M DRAM, 1M lan nganti 255 M memori bisa digayuh. Panginstalan DRAM SIMMs Apa "Tabel-free", kang
SIMMs diinstal menyang sembarang lokasi siot lan kombinasi sembarang.
INSTALASI PU:
Pilih Tipe CPU
JUMPER:
Panyambung:
Dokumen / Sumber Daya
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