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501-1144
2050 CPU VME 1M (2/130/160)
These boards are apparently all sufficiently identical (variations on the 2050
CPU) to be treated as one.
10MHz 68010, up to 4M on-board DIP memory with 256Kx1 chips. VME bus
interface.
From left to right, the back edge of the board has: eight LEDs; a female DB15
keyboard/mouse connector; two female DB25 serial port connectors (ports A and
B from left to right); a female DB15 AUI Ethernet connector; and a female DB9
monochrome video connector.
Pin 1 is usually in the upper right corner of all connectors. Unconnected
pins are not listed.
The eight LEDs are used for diagnostic purposes. In the chart below, a "1"
indicates a lit LED, and a "0" indicates an unlit LED. Orientation of the
LEDs on the board is unknown.
Pattern Status Problem
-------- ------ -------
00000000 After complete power-up sequence System running OK
00000001 Finished self-test, setting up to Check CPU first,
boot then expansion brd
00000010 Entering user watchdog routine Software bug
00000011 After local memory verified CPU
00000111 After diags, while setting up CPU
00001000 Blinks off and on while NMI OK System running OK
00010001 Testing context registers CPU
00100001 Testing constant data in seg map CPU
00100010 Testing addr dependency in seg map CPU
00100011 Testing data lines in seg map CPU
00110001 Testing constant data in page map CPU
00110011 Testing data lines in page map CPU
00110010 Testing addr dep in page map CPU
01000000 Testing PROM contents CPU or PROMs bad
01010000 Testing SCC chip(s) CPU
01110000 Sizing memory before constant test CPU, then expansion
01110001 Testing constant data in memory CPU, then expansion
01110010 Testing addr dependency in memory CPU, then expansion
01111111 Testing parity circuitry CPU, then expansion
10000001 Testing timer chip CPU
11110001 Setting up memory after diags CPU, then expansion
11110010 Setting up maps after diagnostics CPU
11110011 Setting up frame buffer and video CPU -- check video
clock jumper jumpers
11110100 Setting up NMI or keyboard CPU
11111111 A reset sets LEDs to this state CPU or PROMs bad, or
"bad device"
The pinout of the keyboard/mouse connector is probably the same as for any
Sun-3 with a DB15 connector.
The serial ports appear to conform to both RS-232 and RS-423 and are wired
DTE. The pinout of the serial ports is:
2 TxD (transmit data) 8 DCD (Data Carrier Detect)
3 RxD (receive data) 15 DB (transmit clock from DCE)
4 RTS (Request To Send) 17 DD (receive clock from DCE)
5 CTS (Clear To Send) 20 DTR (Data Terminal Ready)
6 DSR (Data Set Ready) 24 DA (transmit clock from DTE)
7 GND
The DB, DD, and DA signals are not used with ordinary asynchronous equipment
such as most modems and terminals, printers, etc.).
Jumpers J200 11-12, J702, and J704 relate to Ethernet. The pinout of the AUI
Ethernet connector is:
2 E.COL+ 9 E.COL-
3 E.TxD+ 10 E.TxD-
5 E.RxD+ 12 E.RxD-
6 GND 13 +12V
7 VCC
The monochrome video output levels are ECL/TTL. Jumpers J1600 1-8 and J1801
relate to video. The pinout of the monochrome video connector is:
1 VIDEO+ 6 VIDEO-
3 HSYNC 7 GND
4 VSYNC 8 GND
5 VCC 9 GND
There are nine jumper blocks on the board. Coordinates are printed at the
edges of the board; pin 1 orientations are given assuming the connectors
nearest you and the component side up.
J200 at F-9, pin 1 at left end
1-2 UART clock JUMPED
3-4 10/12MHz CPU operation JUMPED
5-6 12/10MHz CPU operation UNJUMPED
7-8 reserved UNJUMPED
9-10 reserved JUMPED
11-12 Ethernet clock JUMPED
13-14 memory refresh JUMPED
15-16 time outs
J500 at A-16/17, pin 1 toward VME connectors
1-2 27128 PROMs
3-4 27256 or 27512 PROMs
5-6 27128 or 27256 PROMs
7-8 27512 PROMs
27128 PROMs: 1-2, 5-6 jumped (for older PROMs)
27256 PROMs: 3-4, 5-6 jumped
27512 PROMs: 3-4, 7-8 jumped (for version 1.1.2 PROMs)
J702 at I/J-4
Jump to put -5VDC on pin 7 of Ethernet
J704 at I/J-4
Jump for type-1 (capacitative coupled) Ethernet transceiver,
umjump for type-2 (transformer coupled).
J800 at D-37, pin 1 at left end
1-2 VME interrupt level 1 (normally jumpered, may JUMPED
be unjumpered on some boards)
3-4 VME interrupt level 2 JUMPED
5-6 VME interrupt level 3 ?
7-8 VME interrupt level 4 ?
9-10 VME interrupt level 5 ?
11-12 VME interrupt level 6 JUMPED
13-14 VME interrupt level 7 JUMPED
15-16 unused
Jumpers marked "?" are listed as jumped by default in some sources and
unjumped by default in others.
J900 at C-37, pin 1 at left end
1-2 DVMA addr comparator A20=0/*1 JUMPED
3-4 DVMA addr comparator A21=0/*1 JUMPED
5-6 DVMA addr comparator A22=0/*1 JUMPED
7-8 DVMA addr comparator A23=0/*1 JUMPED
9-10 VME arbiter JUMPED
11-12 VME reset master JUMPED
13-14 VME reset slave UNJUMPED
15-16 VME system clock JUMPED
J1201 at D-29, pin 1 at left end Memory type/size
1M 2M 3M,4M
---- ---- -------
1-2 UN JU JU
3-4 UN UN JU
5-6 JU UN UN
7-8 UN JU JU
9-10 JU UN UN
11-12 UN JU JU
13-14 JU UN UN
15-16 UN JU JU
The 1M configuration uses 64Kx1 DIPs occupying positions 40-57 of rows N-U
(note that the coordinate system changes in the memory area, in the right
corner of the board nearest the VME connectors). All other configurations
use 256Kx1 DIPs. The 2M configuration occupies only rows N-Q, the 3M
configuration presumably occupies rows N-S, and the 4M configuration
populates all rows. All configurations have one bit of parity per byte.
J1600 at E-17, pin 1 at left end
1-2 video register sense bit 0, unjumped if JUMPED
display size is 1024 x 1024
3-4 video register sense bit 1, umjumped if a JUMPED
color display board is installed (2/130,
2/160 only)
5-6 video register sense bit 2 JUMPED
7-8 video register sense bit 3 JUMPED
9-10 reserved
11-12 reserved
13-14 10/12MHz CPU operation JUMPED
15-16 12/10MHz CPU operation UNJUMPED
J1801 at L/M-6
Jump by default to enable 100MHz video clock, unjump to disable.
The ID PROM is at location A19. The missing (?) chips at A/B3-7 (9518) and
E6 (P16R4) were for hardware-assisted DES encryption.
Power requirements are +5V @ 12A, +12V @ 1A, and -12V @ 0.5A.
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Last modified: 2000.10.28.11.45.33 CDT
Server time: 2012.02.09.18.35.36 GMT