KA630 CNF?

From: Eric Smith <eric_at_brouhaha.com>
Date: Sun Feb 28 14:43:06 1999

Megan asks:
> Does anyone have any information on the KA630 CNF board?

Only what's in the KA630-AA CPU Module User's Guide

> Since I have never actually seen the board (which plugs into the
> KA630/650 directory), I'd specifically like to know what pins I
> need to connect to establish the processor as the first, second and
> third coprocessor...

On pages 2-7 and 2-8, it says that switches 7 and 8 of the KA630CNF
preform that function, and that they are wired to KA630-AA J2 pins 4 and 5,
which are called "CPU CD0 L" and "CPU CD1 L".

The switch settings are documented as

KA630CNF switch 7 8 CPU Operation Mode
KA630-AA J2 pin 4 5

                        Off Off Arbiter [normal]
                        On Off Auxilliary 1
                        Off On Auxilliary 2
                        On On Auxilliary 3

So I'd guess that if you grounded J2 pin 4, your KA630 would become
Auxilliary 1. Ground is available on J2 pins 1-3, 6, 12, and 16.


Other switch settings are:



KA630CNF switch 1 Halt Mode
KA630-AA J2 pin 15

                        Off Disabled
                        On Enabled



KA630CNF switch 2 3 4 Console Baud Rate
KA630-AA J2 pin 17 18 19

                        Off Off Off 300
                        On Off Off 600
                        Off On Off 1200
                        On On Off 2400
                        Off Off On 4800
                        On Off On 9600
                        Off On On 19200
                        On On On 38400



KA630CNF switch 5 6 9 10 Power-Up Mode
KA630-AA J2 pin 13 14

                        Off Off On Off Normal Operation
                        On Off On Off Language Inquiry Mode
                        Off On Off On Loopback Test Mode
                        On On On Off Manufacturing use only,
                                                         bypasses memory test



Notes:

According to the manual, other settings for switches 5, 6, 9, and 10
should not be used.

The manual lists switches 9 and 10 as being connected to KA630-AA J3 pins
3 and 8. However, I suspect that they are wired such that switch 9 when
off disconnects the normal receive input, and switch 10 when on connects
the loopback. I don't have prints to confirm this.

The diganostic LEDs are driven by J2 pins 7, 8, 9, and 11, with 11 being
the most significant bit.

+5V is available on J2 pin 20.

+10V is supplied from the BBU (battery) to the TOY (real time clock) via
J2 pin 10.
Received on Sun Feb 28 1999 - 14:43:06 GMT