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The AT89C51ED2 pro- vides bytes of EEPROM for nonvolatile data storage . In addition, the AT89C51RD2/ED2 has a Programmable Counter Array. AT89C51EDCSIM Microchip Technology / Atmel 8-bit Microcontrollers – MCU 80C31 w/4k datasheet, inventory, & pricing. AT89C51ED2-SLSUM Microchip Technology / Atmel 8-bit Microcontrollers – MCU 64kB Flash B RAM VV datasheet, inventory, & pricing.

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Selecting external vs internal flash Alexandra Carey Yes, that answers my question. Selecting external vs internal flash erik malund Hertel, a little boo-boo: But I told that at89d51ed2 original message body poster has indicated AT89C How do I set it? Is there an elegant solution? The only modification that can be made is to program memory on the flash.

AT89C51ED2: Selecting external vs internal flash

I must have slept well last night: Selecting external vs internal flash Alexandra Carey Same topic, new problem: EA is a pin on your controller. Selecting external vs internal flash Alexandra Carey That’s what the data sheet says.

Is is just me, or does that seem odd to anyone else, since it’s not divisible by 4? Selecting external vs internal flash Robert Wey I do not see this higher up It was a joke.

Selecting external vs internal flash Robert Wey The pin is! Thanks for being patient — I’m new at this and want to double-check everything before I make a huge ass of myself.

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Please review our Privacy Policy to learn more about our collection, use and transfers of your data. Selecting external vs internal flash J Guy FC03 is wrong. Selecting external vs internal flash Alexandra Carey Oh. Selecting external vs internal flash Walt Conley Try putting a zero in front of your Fh. Selecting external vs internal flash Andrew Neil You “set” a bit by writing a ‘1’ to it.

Atmel AT89C51ED2

Selecting external vs internal flash Robert Wey I hear ya. Selecting external vs internal flash erik malund FC03 is wrong.

Philips cured some “chip errors” of goinig into ISP by making FC00 a jump to 0 so runaway programs did no cause a report wt89c51ed2 a chip malfunction. AT89C51 ED2 has this bit! I would like to set a fuse?

If the EA pin is tied low, all xt89c51ed2 memory fetches are from external memory. Products Download Events Support Videos.

This site uses cookies to store information on your computer. It can be modified by software. Maybe this section of the Datasheet is what you were looking for: See Table 76 of doc Plus, the data sheet does not say how.

Atmel AT89C51ED2

If it were, you’d be changing your code source on the fly which might be a bit tricky to manage. That may eliminate the error. As about the question then the things are af89c51ed2 The BLBJ bit is by default 0. If security level 1 is programmed, EA will be internally latched on Reset.

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As this is Monday I hope to be excused.

Oh how many times has someone tried to “debug” what was a polarity misunderstanding. Maybe just due typpo.

Selecting external vs internal flash erik malund No need to repeat yourself repeat??? So it may be possible that this can be accomplished with FLIP. I indicated that original poster has used part name “AT89C51” in the body of the message. Read-Only Author erik malund Posted 4-Dec Am I correct that this xt89c51ed2 what is happening? Selecting external vs internal at89c51rd2 erik malund Andy, are you getting at89d51ed2 you asked the poster to find it in the datasheet and ended up finding it for him: And what does the subject do with AT89C51 indicated in your post?

If this is not an SFR bit, then perhaps its something you set with an option in a device programmer? The correct address is F, according to my data sheet. Read-Only Author erik malund Posted 6-Dec Selecting external vs internal flash Oleg Sergeev hi, it seems, my English is so bad that nobody understands what I said. No, it is not clear. I at89c15ed2 not see this higher up Erik. By continuing to use our site, you consent to our cookies.