eec-iv info (11-25)

[Tom Cloud]

newest pdf on eec-iv released last week  ...  named 112601.pdf  ....
 (bottom of page should say printed 11-26)

many have it on their web sites (if you have it, please post
the URL)

        http://www.wrljet.com/engines
        http://www.tiac.net/users/goape/index.htm
        http://www.freeyellow.com/members2/midnitewiz/index.html
        http://www.SmartWorx.com/Dcompton
(click on "Link to FTP Site", click on "Automotive", and then click on "EEC-IV")

newest additions:

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On page 20, 

it should read

87-88 SD 5.0 Mustangs

not 
87-88 SC 5.0 Mustangs


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More info for your 8061 page...

Register Map:
0000:0001  ZERO
0002 LOW SPEED I/O
0003 Related to LOW SPEED I/O... maybe a data
        direction register ???
0004:0005 A TO D CONVERTOR
  commands of 0 through C appear to be valid...
0006:0007 FREE RUNNING TIMER
0008: INTERRUPT MASK
  bit 7: HSI0
  bit 6: HSI1 ???
  bit 5: Timer output int 1
  bit 4: External interrupt
  bit 3: Pending data available
  bit 2: A-D complete
  bit 1: Timer overflow
  bit 0: Timer output int 2
0009: INTERRUPT STATUS (same mask as above)
000A: IO STATUS
  bit 5: interrupt control ??
  bit 4: interrupt control ??
  bit 2: HSI input holding register full
  bit 0: HSO output holding register full
000B: HSI input levels
000C: HSI input mask
000D: HSI input flags, HSO output command
  HSO command:
  bits 0-3: 0-9 = output pins, F = software interrupt
  bit 4: output level
  bit 5: interrupt enable

000E:000F HSI/HSO command time
0010:0011 STACK POINTER ??

It seems to me that I am a bit short on I/O ports for the
number of pins that I have. The multiplexed data bus is
just plain wierd. I haven't been able to figure out how to
program the 8763 memory chips, nor emulate them via
an EPROM.

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Tom Cloud