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- From: pcats@cryton.demon.co.uk (Patrick Arnold)
- Subject: VLSI VY86C650 (Arm 650)
- Date: Thu, 30 Dec 1993 16:06:48 +0000
-
- With reference to the recent talk about the ARM 650, I have obtained a data
- sheet on it. Here are some of the salient points:
-
- It is described as an integrated microcontroller for applications requiring
- high performance and high reliability.
-
- The FSB elements in the VY86C650 include a memory controller for DRAM, SRAM,
- ROM, flash EEPROM, and PCMCIA memory, 4K of onboard SRAM storage, interleaved
- ROM control,a 4 channel dual-port DMA controller with 4x32 byte DMA buffers,
- a serial controller supporting sync, async, SDLC and Localtalk protocols, a 23
- level interrupt controller, and a laser printer video subsystem.
-
- The memory controller supports up to 64 Mb of RAM and 16 Mb of ROM.
-
- The ROM controller supports 8, 16, and 32 bit wide ROMs.
-
- The laser printer interface supports up to 1200 DPI in 256 grey levels.
-
- The microcontroller has a 32 bit timer-counter that supports a number of
- virtual timer emulations.
-
- It has an embedded debugger which allows stepwise debugging and access to
- all the processor registers and all the memory via the JTAG test port.
-
- The chip is obviously designed for laser printers, fax machines, etc. What the
- data sheet doesn't make clear, though, is whether the chip is available from
- stock with all the above options, or whether it is a custom macrocell system
- for customers to specify options from. I think, from the way the sheet is
- written, that it is basically describing a library of macrocells, rather than
- a stock product. I may be wrong, however!
-
- Patrick.
-
- pcats@cryton.demon.co.uk vox+44(749)670058 fax+44(749)670809 dat+44(749)670030
-
-
- From: zizzler@freenet.hut.fi (Ari Pitkänen,,,)
- Date: 1 Jan 1994 20:39:22 GMT
-
- >The chip is obviously designed for laser printers, fax machines, etc. What the
- >data sheet doesn't make clear, though, is whether the chip is available from
- >stock with all the above options, or whether it is a custom macrocell system
- >for customers to specify options from. I think, from the way the sheet is
- >written, that it is basically describing a library of macrocells, rather than
- >a stock product. I may be wrong, however!
-
- According to EDN magazine it costs $40 if you buy over 1000 pcs.
-
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-