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501-1208
3004 "Carrera" CPU VME 4M (3/75/140/150/160/180)
16.67MHz 68020, 68881, Sun-3 MMU with eight hardware contexts, 4M of onboard
memory. VME bus interface.
From left to right with component side up and connector edge toward you
(normal top edge at left), the rear edge has: a female DB15 AUI Ethernet
connector; eight LEDs (bit 0 to the top/left); a switch to toggle between
Normal and Diagnostics modes; a reset switch; a female DB9 monochrome video
connector; a female DB15 keyboard/mouse connector; and two female DB25 serial
port connectors (ports A and B from left to right (top/bottom)).
Pin 1 is usually in the upper right corner of all connectors. Unconnected
pins are not listed.
Jumpers J2501 and J2503 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
The eight LEDs are used for diagnostic purposes.
If you want the machine to boot normally, set the diagnostics switch to "NORM"
(labelled "BOOT" on some early versions). If you want extended diagnostics
when you power up the system, set the switch to the "DIAG" position. If the
switch is set to "DIAG", power-on self-test messages are sent to serial port
A.
The user reset button invokes a watchdog reset. The result depends on the
value at address 0x17 of the EEPROM. (?)
The monochrome video output levels are ECL/TTL, with a resolution of
1152 x 900 at 61.8KHz horizontal sync and 66Hz vertical sync. The pinout of
the monochrome video connector is:
1 VIDEO+ 6 VIDEO-
3 HSYNC 7 GND
4 VSYNC 8 GND
9 GND
The pinout of the keyboard/mouse connector is:
1 RxD0 (keyboard) 8 GND
2 GND 9 GND
3 TxD0 (keyboard) 10 VCC
4 GND 11 VCC
5 RxD1 (mouse) 12 VCC
6 GND 14 VCC
7 TxD1 (mouse) 15 VCC
The serial ports conform to both RS-232-C and RS-423 and are wired DTE. The
documented maximum speeds are 19200 bps for output and 9600 bps for input.
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 25 VERR (-5V)
The DB, DD, and DA signals are not used with ordinary asynchronous equipment
such as most modems and terminals, printers, etc.).
There are a variety of jumper blocks, many of which (oddly) have separate
designations for each pair of pins. Locations below are given with component
side up and connector edge toward you.
J100 (pins 5-6 of a block on the left side, beyond the 68881)
"Cache disable". UNJUMPED
J300 (block in far left corner, pin 1 nearest)
1-2 unused
3-4 VME interrupt level 1 JUMPED
5-6 VME interrupt level 2 JUMPED
7-8 VME interrupt level 3 JUMPED
9-10 VME interrupt level 4 JUMPED
11-12 VME interrupt level 5 JUMPED
13-14 VME interrupt level 6 JUMPED
15-16 VME interrupt level 7 JUMPED
J400 (block toward far left corner, pin 1 nearest)
1-2 16.67MHz CPU clock JUMPED
3-4 12.5MHz CPU clock UNJUMPED
5-6 12.5MHz FPU clock UNJUMPED
7-8 16.67MHz FPU clock JUMPED
J1001 (single jumper in middle right)
Jump to enable SCC clock. JUMPED
J1200 (pins 4-5 of block in near left corner)
Jump for 27256 boot PROMs. UNJUMPED
J1201 (pins 5-6 of block in near left corner)
Jump for 27512 boot PROMs. JUMPED
J2301 (single jumper in near middle, to right of divider)
Jump to enable video clock. JUMPED
J2501 (pins 1-2 of block in near left)
Jump to enable Ethernet clock. JUMPED
J2502 (pins 1-2 of block in near left corner)
Jump to enable VME clock. JUMPED
J2503 (pins 3-4 of block in near left)
Jump for a type-1 Ethernet transceiver, unjump for a type-2.
J2505 (pins 7-8 of a block on the left side, beyond the 68881)
Unused.
J2700-J2703 (block in far left, pin 1 nearest)
1-2 J2703, jump to enable VME reset master JUMPED
3-4 J2702, jump to enable VME reset slave UNJUMPED
5-6 J2701, jump to enable VME request/arbiter JUMPED
7-8 J2700, jump to enable VME request only UNJUMPED
J3101 (pins 1-2 of block on the left side, beyond the 68881)
Jump for 2M CPU. JUMPED
J3102 (pins 3-4 of block on the left side, beyond the 68881)
Jump for 4M CPU. JUMPED
Additional features of interest: the boot PROM is on the near left side at
location U1200 (grid C5). The IDPROM is catty-corner from the boot PROM at
location U1409 (grid B10). The keyboard fuse is by the reset switch at grid
A16. The Ethernet fuse is by the boot PROM at grid C8.
Note that boot PROM version 1.8 is required to boot from a QIC-24 tape. Boot
PROM version 2.6 is required to boot from a QIC-24 tape in a Sun-2 shoebox.
Boot PROM version 2.6 is also required to boot from an SMD disk attached to a
Xylogics 7053 SMD controller.
Note that CPU revisions 501-1208-04 and lower may fail with non-Sun boards.
Use 501-1208-05 or greater.
Power requirements are +5V @ 14.6A, -5V @ 0.8A.
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Last modified: 2000.10.28.15.00.01 CDT
Server time: 2008.12.06.05.24.27 GMT