USPIIi-1v Hardware Manual
A-14
Themis Computer
A.3
I/O Board
For a diagram of the I/O Board front panel refer to Appendix C.3, "Baseboard, I/O Board, and Creator
Graphics Front Panels."
Caution —
As VME P1 is not populated, the position occupied by the I/O board (position #2 on USPIIi-1v/
2c and 1v/3) may require jumpering. Refer to Section 2.3, "Backplane Jumper Settings," on page 2-2 for
more information
A.3.1
I/O Board VME P2
SCSI port B, Ethernet MII port B and either serial port C or D are routed to P2. In Sun mode, serial port C
acts as Console Port. Selection between serial port C and D signals on P2 is made by solder beads SB0301 to
SB0306. Refer to Section Figure B-5., "I/O Board Solder Side Solder Beads," on page B-10
• Connector Type: VME32
Figure A-9.
I/O Board VME P2 Connector Orientation
Table A-11.
I/O Board VME P2 Connector
Pin
Row A
Signal Name
Row B
Signal Name
Row C
Signal Name
1
VCC
VCC
VCC
2
MII B MDIO
GND
SCSI B P2
a
3
MII B MDC
SCSI B TERMPWR
SCSI B TERMPWR
4
MII B RXD3
VME A24
SCSI B ATN
5
MII B RXD2
VME A25
SCSI B BSY
6
MII B RXD1
VME A26
SCSI B ACK
7
MII B RXD0
VME A27
SCSI B RST
8
MII B RX DV
VME A28
SCSI B MSG
9
MII B RX CLK
VME A29
SCSI B SEL
10
MII B RX ER
VME A30
SCSI B CD
11
MII B TX ER
VME A31
SCSI B REQ
12
MII B TX CLK
GND
SCSI B IO
1
32
Row A
Row B
Row C
(Top View)
PCB Edge
Содержание USPIIi-1v
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