From rwallace@world.std.com Thu Jan 20 09:43:58 PST 1994 Article: 2016 of vmsnet.pdp-11 Path: nntp-server.caltech.edu!elroy.jpl.nasa.gov!decwrl!infopiz!mccall!info-pdp11-newsgate!list Newsgroups: vmsnet.pdp-11 Subject: Re: Dip switch setting KDF11-BA Message-ID: From: Roger N Wallace Date: Wed, 19 Jan 1994 22:03:28 -0500 (EST) Organization: The Internet Return-Path: If-Type-Unsupported: send CC: info-pdp11@transarc.com, ANDREW_KLE@antdiv.gov.au In-Reply-To: <940119175056.21814fc3@antdiv.gov.au> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Lines: 97 On Wed, 19 Jan 1994, Andrew Klekociuk, Australian Antarctic Division wrote: > > Does anyone have information to help me setup the dip switches without the need > to resort to guess-work? > > The boot ROMs described in the user manual are an early 2Kx8 set that is plug and play compatible with the BDV11 bootstrap/diagnostic/terminator board. The last in this older series that I am aware of carry the part numbers 23-339E2 and 23-340E2. Boards supplied in Micro-11 systems had a pair of 8Kx8 ROMs. There are at least three versions, ranging from KDF11BE, V0.9 (Part Numbers 23-183E4/23-184E4), KDF11BH (23-380E4/23-381E4) and KDF11BJ (23-453E4/ 23-454E4). The last two support TK50 as a boot device. Here is a compressed listing of the switch settings: S1-8: Console Select -- ON = ANSI CRT (e.g. VT-100) OFF = NOT ANSI CRT (Hard copy TTY) S1-7: Memory Diagnostic -- ON = Run Quick Memory Diagnostics (But the system seems to run this anyway, even with the switch OFF) S1-1 through S1-6: Select Boot Device as follows (0=Open/1=Closed): S1 6 5 4 3 2 1 *** Device *** 0 0 0 0 0 1 TSV05 Unit0 (TK25) 0 0 0 0 1 0 TU58 Drive 0 0 0 0 0 1 1 TU58 Drive 1 0 0 0 1 0 0 RX01 Drive 0 0 0 0 1 0 1 RX01 Drive 1 0 0 0 1 1 0 RX02 Drive 0 0 0 0 1 1 1 RX02 Drive 1 0 0 1 0 0 0 DU0: 0 0 1 0 0 1 DU1: 0 0 1 0 1 0 DU2: 0 0 1 0 1 1 DU4: 0 0 1 1 0 1 DU5: 0 0 1 1 1 0 DU6: 0 0 1 1 1 1 DU: "Sniffer Boot" 0 1 0 0 0 0 DL0: 0 1 0 0 0 1 DL1: 0 1 0 0 1 0 DL2: 0 1 0 0 1 1 DL3: 0 1 0 1 0 0 DEQNA / Unit 0 0 1 0 1 0 1 DEQNA / Unit 1 0 1 1 0 0 0 TK50 0 0 0 0 0 0 Inhibit Autoboot 1 1 1 0 0 0 DECNET / DUV11 1 1 1 0 0 1 DECNET / DLV11-E 1 1 1 0 1 0 DECNET / DLV11-F Other possible combinations are "reserved" or "unused". With luck 8-} , I copied these correctly from by KDF11BJ ROM upgrade kit manual. The DU: "Sniffer Boot" was the default for DEC Micro-11 systems; it tests _removable_ MSCP devices, then _fixed_ MSCP devices, in numerical order and boots the system from the first bootable device found. Incidentally, the later 8Kx8 boot code will work fine in a BDV11, provided you copy the 2 8Kx8s into 8 2Kx8s and set jumpers to access the ROM sockets in the appropriate order. This is a "handy" trick for upgrading older PDP-11/23s to use MSCP boot devices. Roger Wallace