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ID number:109233
 
Author:
Evaluation:
Published: 04.03.2011.
Language: Latvian
Level: College/University
Literature: n/a
References: Not used
Extract

Parallel ATA I/O kabelis
Parallel ATA kabelis ir 40-conductor kabelis kas pārnes signālus pa maģistrālēm.
Ja kabelis ir garāks par 0.46m var rasties problēmas

Parallel ATA Dual-Drive Configurations
Primārais disks (drive 0) sauc par Master un sekundāro diksu (drive 1) sauc par Slave. Disku var uzstādīt par Master vai Slave izmantojot Jumper vai arī interfeisā izmantojot Cable select (CS) pin un uzstādot CS Jumper uz diska.

Parallel ATA PIO failu pārvietošanas veidi
PIO (programmed I/O) veids nosaka cik ātri pārvieto failus no/uz disku izmantojot PIO pārvietošanu. Lēnākais veids – PIO Mode 0- ātrums ir 3.3MBps. Pio Mode 4 = 16.6MBps.

Parallel ATA DMA failu pārvietošanas veidi
DMA (direct memory access) pārvieto failus starp drive un memory neizmantojot CPU, nevis kā PIO.
Ir divu veidu DMA: singleword (8-bit) un multiword (16-bit) DMA.

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