topic Re: Motorola MCU's from Seagate HDD's - need identify in 8-bit Microcontrollers

Motorola MCU's from Seagate HDD's - need identify

Worfvx — Tue, 19 Oct 2010 20:58:09 GMT

Hello,

i need identify some Motorola MCU's from older Conner /Seagate HDD's. I need know identify as MC68HC part:

SC415016AFU 0E87J

SC415016AFU 0E61H

SC415016CFU 0F17V

SC415111FU 3C94R

SC416880FU 1G24M

SC416880FU 0G79C

SC439566FU8 0G14T

Do you can help me someone, very please?

Very thanks

Re: Motorola MCU's from Seagate HDD's - need identify

Juls — Thu, 21 Oct 2010 20:14:54 GMT

im afraid you wont get answer

its probably part of NDA

if you are sure its mc68h part maybe you could try to read the info you can inside the chip maybe its model is there

Re: Motorola MCU's from Seagate HDD's - need identify

Worfvx — Fri, 22 Oct 2010 01:47:25 GMT

inside the chip?

Re: Motorola MCU's from Seagate HDD's - need identify

WadeH — Mon, 15 Nov 2010 03:33:29 GMT

Many of the sub-gigabyte Conner drives had some version of a 68HC11A or -E on them: this is from personal experience. I have _heard_ that some had 68HC16s and 68HC11Fs.

The HC11A-types had an internal ROM, but it was not used. Many of those I looked at (20 or so) had a version of the BUFFALO monitor on board and a very few had (presumably non-functional) Chrysler Corporation engine-control code. Those with the BUFFALO-monitor can be brought up with the super-special monitor connection (Vague, I know:It's been a long time) and reprogrammed to boot the monitor. Those without the monitor can be used to execute a 256-byte program from EEPROM.

Most of them ran at 2MHz bus-clock and a few later ones at 3MHz.

It would be quite a bit of work to exploit these. The amount of fun is up to you

Wade Hassler

Re: Motorola MCU's from Seagate HDD's - need identify

Worfvx — Mon, 15 Nov 2010 04:48:54 GMT

Thanks for your help, Wade H. I have some HDD's boards in photos. I can send this photos to you for better exact identification. Do you can make this for me? I need also identify MCU on some others HDD boards, example Seagate ST-251.