Difference between revisions of "NEC VR4100"
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| + | The '''NEC V<sub>R</sub>4100''' series of CPUs are based on the MIPS [[R4000]] core. | ||
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| + | ==V<sub>R</sub>4121== | ||
| + | ==V<sub>R</sub>4122== | ||
| + | ==V<sub>R</sub>4131== | ||
| + | ==V<sub>R</sub>4133== | ||
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[[NEC VR4133]] | [[NEC VR4133]] | ||
| − | == | + | |
| + | ==V<sub>R</sub>4181== | ||
| + | ==V<sub>R</sub>4181A== | ||
| + | |||
The VR4181A (µPD30181A) is a 131 MHz 64-bit MIPS CPU that roughly implements the ([[Instruction_Set_Architecture#MIPS_III|MIPS III]] ISA, (without FPU, LL, and SC instructions) and [[MIPS16]]), plus interfaces for TFT/STN LCD display, dual CompactFlash, 3 UARTs, IrDA, I2C, 64 parallel I/O, RTC, watchdog timer, keyboard, USB, touch, audio I/O, and ISA-subset expansion bus. | The VR4181A (µPD30181A) is a 131 MHz 64-bit MIPS CPU that roughly implements the ([[Instruction_Set_Architecture#MIPS_III|MIPS III]] ISA, (without FPU, LL, and SC instructions) and [[MIPS16]]), plus interfaces for TFT/STN LCD display, dual CompactFlash, 3 UARTs, IrDA, I2C, 64 parallel I/O, RTC, watchdog timer, keyboard, USB, touch, audio I/O, and ISA-subset expansion bus. | ||
Revision as of 19:44, 28 January 2006
The NEC VR4100 series of CPUs are based on the MIPS R4000 core.
Contents |
VR4121
VR4122
VR4131
VR4133
VR4181
VR4181A
The VR4181A (µPD30181A) is a 131 MHz 64-bit MIPS CPU that roughly implements the (MIPS III ISA, (without FPU, LL, and SC instructions) and MIPS16), plus interfaces for TFT/STN LCD display, dual CompactFlash, 3 UARTs, IrDA, I2C, 64 parallel I/O, RTC, watchdog timer, keyboard, USB, touch, audio I/O, and ISA-subset expansion bus.
Datasheets
Datasheets are available from NEC Electronics search page.
External links
- http://www.linuxdevices.com/products/PD2831532191.html More on the VR4181A
- http://www.necel.com/micro/english/product/vr/vr4100series/index.html Overview over the NEC VR4100 series
- http://www.eu.necel.com/docuweb/ NEC Document database
