Some of us read it, Tim! Don't despair! (Or turn it off!)
Dave
Tim Shoppa wrote:
>
> > I think this console cable's screwed, the machine boots OK but refused to
> > talk to a console. Not even power-up line noise. And I know the
> > terminal's good. Tried turning the cable both ways. Several wires are
> > sunsoldered, but not any of the important ones... something's screwy with
> > this cable. Anyone got a pinout of one?
>
> Sheesh. Why do I even bother running a FTP site filled with hardware
> documentation when nobody even bothers to read it?
>
> In any event, here are dl11-w.info and dl11-w.info2 from
> ftp://sunsite.unc.edu/pub/academic/computer-science/history/pdp-11/hardware :
>
> Here's some stuff about the M7856 (DL11-W) module
> (combined serial port/real-time clock), taken from
> the print-set. As far as I can remember, there are 5
> sets of dip-switches on the board. Mode of operation
> is selected as follows:
>
> Mode 1: serial line and RTC can both be addressed.
> Serial line addresses are restricted to 77756X. [Standard
> console address]. Line clock is at 777546.
> Mode 2: Only serial line can be addressed. Address selection
> ranges from 774000 to 777777. Line clock is disabled.
> Mode 3: Only line clock can be addressed, serial line
> does not respond to any address. Line clock is at 777546.
>
> Mode selection & address bits:
>
> Address bit A10 A09 A08 A07 A06 A05 A04 A03 N/A N/A
> Switch S5-3 S5-2 S5-1 S5-4 S5-5 S5-6 S5-8 S5-7 S5-9 S5-10
> Mode 1 Off Off Off On Off Off Off On Off On
> Mode 2 Off Off Off On Off Off Off On On Off
> Mode 3 Off Off Off On Off Off On On On On
>
> Mode 2 is shown for serial line addresses 77756X. For address
> bits in mode 2, switch off = 1 and switch on = 0.
> [Apparently, it is not possible to deviate from the specified
> address for the serial port in Mode 1 -- I have a feeling that
> if you fiddle with the address switches in Mode 1, the LTC
> address may move as well.]
>
> Note: remove R63 from DL11-W operating in Mode 2 to allow proper
> operation of a line frequency clock or other DL11-W in Mode 1
> or Mode 3. [R63 goes from the BUS LTC L signal at pin CD1
> on the backplane connector to (among other things) pin 9 on a 7414,
> and is a 330 ohm resistor. It should be easy enough to find --
> I don't have a layout diagram for the board.]
>
> Vector Address Assignments
>
> Line clock is fixed at 100. Serial line assignments are
> floating vectors of the form XX0 (receiver) and XX4 (transmitter),
> where XX is 00 to 77. For console device, vector should be
> 060/064.
>
> Vector bit V8 V7 V6 V5 V4 V3
> switch S2-8 S2-7 S2-5 S2-3 S2-6 S2-4
> 060/064 Off Off Off On On Off
> On=1, Off=0.
>
> Data Format
>
> Bits per Character
> S4-4 S4-3 Bits
> On On 5
> On Off 6
> Off On 7
> Off Off 8
>
> Parity
> S4-2 S4-6 Parity
> Off Off Off
> On Off Off
> Off On Even
> On On Odd
>
> Stop Bits
> S4-5 Stop bits
> On 1
> Off 2 (or 1.5 if 5 data bits selected)
>
> Baud Rate Selection
> Rate Receiver Transmitter
> S3-2 S3-3 S3-5 S4-10 S3-1 S3-4
> 110 Off Off Off On On On
> 150 On Off Off Off On On
> 300 Off On On On Off Off
> 600 Off On Off On Off On
> 1200 Off Off On On On Off
> 2400 On On On Off Off Off
> 4800 On On Off Off Off On
> 9600 On Off On Off On Off
>
> Current Loop Active/Passive Selection
> Transmitter S1-1 S1-2 S1-3 S1-6 S1-7
> Active On On Off Off On
> Passive Off Off On On Off
>
> Receiver S3-6 S3-7 S3-8 S3-9 S3-10
> Active On Off On Off On
> Passive Off On Off On Off
>
> Reader Enable S1-4 S1-5 S1-8 S1-9 S1-10
> Active On Off On Off On
> Passive Off On Off On Off
>
> [There is a spade lug on the board, near the front
> edge, which can be connected to one of the spade lugs
> on the M9301 bootstrap module, so that pressing BREAK
> on your terminal keyboard will cause the machine to bomb
> into the bootstrap module's console emulator.]
>
> So there you go. I've used one of these boards on my 11/40
> for several years now, without much bother. I have an M9301
> for bootstrap, and am good at avoiding BREAK when typing!
>
> The only thing that occurs to me about the problems
> you've been having is: is there another device (e.g.
> bootstrap board) in your system that includes an
> LTC circuit? See the note about R63 above.
>
> You can reset the 11/34 CPU by placing CONT/HALT
> in HALT position, then operating BOOT/INIT.
>
> It is indeed possible to disable the on-board SLU on a KD11-B (11/05 CPU).
> I assume (please correct me if I'm wrong) that an 11/10 is similar.
>
> According to my print set, "with W1 *installed* the CPU does not respond to
> internal addresses 177560-177566 and another interface device corresponding
> to these standard console addresses can be configured with the KD11-B."
>
> W1 is on the M7261 board (control logic and microprogram board) between E69
> and C51 (about halfway up the board, roughly in line with edge connector
> DH1/DH2).
>
> The DL11-W (M7856) has 5 DIP switch packs, to set address, vector, baud
> rate, etc. Unfortunately, the functions aren't handily grouped (except in
> the sense one might use if laying out a PCB :-)
>
> Approximate layout (ASCII art isn't my best point):
>
> \______/ \______/ \______/
> _____II_____________II___________________________II_____
> | |
> | ___ |
> | Berg | / |UU,VV
> | connector | | |
> | | | |
> | | | |
> | | | |
> | S3: 1..10 |__\ | B,A
> | |
> | |
> | |
> | S1: 1..10 |
> | |
> | S5: 1..10 |
> | S4: 1..10 |
> | |
> | |
> | |
> | |
> | S2: 1..8 |
> | ___ __ ___ |
> | | | | | | | |
> |__________| |__________| |__________| |__________|
>
> The DL11-W has a Line-Time Clock and one SLU, which can be used in EIA
> (RS232) mode or 20mA current-loop.
>
> There are three address modes:
>
> 1) Both SLU and LTC active. Only possible if SLU address is set
> to 77756x. LTC address is 777546.
>
> 2) Only the SLU is addressable, in the range 774000-777776.
> LTC disabled.
>
> 3) Only the LTC is addressable, the SLU is disabled.
>
> Standard address settings:
>
> addr.bit: A10 A9 A8 A7 A6 A5 A4 A3 LTC LTC
> switch: S5-3 S5-2 S5-1 S5-4 S5-5 S5-6 S5-8 S5-7 S5-9 S5-10
> Mode 1: off off off ON off off off ON off ON
> Mode 2: off off off ON off off off ON ON ON
> Mode 3: off off off ON off off ON ON ON ON
>
> I've shown the mode2 setting for standard console address. It can be
> changed, ON=0 and OFF=1 for the appropriate address bits.
>
> Standard vector settings:
>
> The LTC vector is fixed at 100. For console use, the SLU vector
> should be set to 60, otherwise use the normal vector allocation.
> For S2, ON=1 and OFF=0 (opposite way to S5). S2-1, S2-2 do nothing.
>
> Vector bit: V8 V7 V6 V5 V4 V3
> switch: S2-8 S2-7 S2-5 S2-3 S2-6 S2-4
> for console: off off off ON ON off
>
> The SLU provides 20mA and EIA signals on different pins of the Berg
> connector. Standard BC05C, 7008360, or 7008519 cables can be used (see
> below). The 20mA current loop provides RDR ENBL, and can be active or
> passive, independantly set for transmitter and receiver:
>
> Transmitter: S1-1 S1-2 S1-3 S1-6 S1-7
> Active: ON ON off off ON
> Passive: off off ON ON off
>
> Receiver: S3-6 S3-7 S3-8 S3-9 S3-10
> Active: ON off ON off ON
> Passive: off ON off ON off
>
> Reader Enable: S1-4 S1-5 S1-8 S1-9 S1-10
> Active: ON off ON off ON
> Passive: off ON off ON off
>
> Baud rates: _____Transmit_____ ______Receive_____
> S4-10 S3-1 S3-4 S3-2 S3-3 S3-5
> 110 ON ON ON off off off
> 150 off ON ON ON off off
> 300 ON off off off ON ON
> 600 ON off ON off ON off
> 1200 ON ON off off off ON
> 2400 off off off ON ON ON
> 4800 off off ON ON ON off
> 9600 off ON off ON off ON
>
> The remaining switch settings are for data format:
>
> (No)Parity: S4-6 When on, enable parity.
> Odd/Even: S4-2 When on, and S4-6 is on, use ODD parity
> When off, and S4-6 is on, use EVEN parity
> If S4-6 is off, this switch has no effect
> STOP bits: S4-5 ON = 1 stop bit
> OFF = 2 stop bits (6,7, or 8-bit data)
> OFF = 1.5 stop bits (5-bit data)
> Data word length: 5 bits 6 bits 7 bits 8 bits
> S4-3 ON off ON off
> S4-4 ON ON off off
>
> Cable pinouts (blank means "no connection"):
> Numbers are DB25 pin numbers (for the BC05C) or Mate-N-Lok pin
> numbers (for 7008360):
>
> Berg pin Signal BC05C 7008360
>
> A Ground 1 Prot.Ground (blue/wht) - ground
> B Ground 7 Signal Ground (brwn/wht)
> C 25 Force Busy (red/org)
> D 13 Secondary CTS (org/red)
> E TTL serial in - interlock in - interlock in
> F EIA serial out 2 Transmit Data (wht/blue)
> H 20mA interlock - interlock out
> J EIA serial in 3 Receive Data (org/wht)
> K +20mA serial in 7 + Rec.Data (green)
> L 24 External clk (brwn/red)
> M EIA interlock - interlock out
> N 15 serial clk xmit (grey/grn)
> P 19 Secondary RTS (lbue/blk)
> R 17 serial clk recv (grey)
> S -20mA serial in 3 - Rec.Data (red)
> T 5 Clear To Send (grn/wht)
> U
> V EIA RTS 4 Request To Send (wht/org)
> W 10 -ve power (wht/grey)
> X 22 Ring (blk/org)
> Y 9 +ve power (grey/wht)
> Z 6 Data Set Ready (wht/grn)
> AA +20mA serial out 5 + Trans.Data (white)
> BB 8 Data Carrier Detect (wht/brwn)
> CC
> DD EIA DTR 20 Data Terminal Ready (blk/blu)
> EE -20mA RDR Run 3 - Reader Run (black)
> FF 11 202 Secondary TD (blu/red)
> HH
> JJ 12 202 Secondary RD (red/blu)
> KK -20mA serial out 2 - Trans.Data (black)
> LL 14 EIA Secondary TD (grey/red)
> MM 21 Signal Quality (org/blk)
> NN 16 EIA Secondary RD (red/brwn)
> PP +20mA RDR Run 6 + Reader Run (black)
> RR 23 Signal Rate (grn/blk)
> SS
> TT +5V DC
> UU ground
> VV ground
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