Product specification and feature
2-20
Service Manual
(a) Asic (Jupiter5)
• CPU core : ARM926EJS
- 16KB I-cache, 16KB D-cache
• Operating Frequency
- CPU : 375MHz
- Bust : 125MHz recommended
• Multi-Port DDR SDRAM Controller
- DDR1, 2 combos
- Internal 32 bits data width, external 16 bits data width
• External ROM Controller
- 2 channel NOR flash controller
- 32 MB address space per each channel
• MAC
- 10M/100Mbps
- Full IEEE 802.3 Compatibility
• Engine Controller
- LSU Interface Unit
- Step Motor : 2 Channels
- PWM : 8 Channels
- ADC : 4 Channels
(b) Memory
• Flash Memory : It stores System Program and downloads the System Program through PC Interface, and
in case of model for export it compresses the PCL font, then stores it.
- Capacity : 8M Byte (NOR Flash)
- Access Time : 90ns
- Page read Time : 25ns
• DRAM : It is used as Swath Buffer, System Working Memory Area, etc. when printing.
It stores Font List, compressed into Flash memory, on DRAM and uses it as PCL font in case of model for
export.
- Capacity : Dell 1133 : 64MB
Dell 1135n : 128 MB
- Type : SDRAM 100MHz/133MHz, 16bit
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