Theory of operationsChapter 7
Theory of operations | 7 |
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Overview
The STT8000 ATAPI minicartridge drive is based on proven Seagate designs, Seagate firmware, and the latest technology. This drive uses second generation, custom LSIs for efficient circuit layout and increased reliability with low power consumption. The drive also uses flash EEPROM devices for easy firmware upgrades.
This chapter describes the drive in more detail and explains implementation specific information.
Block diagram
The electronics of the STT8000 ATAPI minicartridge drive are laid out on one main printed circuit board (PCB). Figure
Figure
Simplified block diagram of drive components
256KB | V20 uP |
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EEPROM | 10.0 MHz |
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5 Volt |
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| Head |
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| Read/Write | |
| 40MHz | STTI or | |
| PHILIPS | ||
| Read/Rite | ||
| Crystal |
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| No RWW | |
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RAWHIDE (DelMar + IDE) | Stepper |
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Motor |
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IDE | Digital ASIC |
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Interface | Buffer Mgr. | Motor Control | Capstan |
| ECC | Nat. Semi. | |
| Motor | ||
| RWW | NDM 3000 | |
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IDE ONLY |
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| 512KB | Sensors | Cartridge Present |
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| DRAM |
| Write Protect |
Shading denotes |
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| Tape Hole |
differences from |
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| Top Stop |
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STT8000A Product Manual | Page 69 |
