USPIIi-1v Hardware Manual
A-4
Themis Computer
13
MII A TX EN
VCC
SCSI A DAT<0>
14
MII A TXD0
VME D16
SCSI A DAT<1>
15
MII A TXD1
VME D17
SCSI A DAT<2>
16
MII A TXD2
VME D18
SCSI A DAT<3>
17
MII A TXD3
VME D19
SCSI A DAT<4>
18
MII A COL
VME D20
SCSI A DAT<5>
19
MII A CRS
VME D21
SCSI A DAT<6>
20
Serial B TXD or
Do not connect
c
VME D22
SCSI A DAT<7>
21
Serial B RXD or
Do not connect
c
VME D23
SCSI A PAR<0>
22
Serial B CTS or
Do not connect
c
GND
SCSI A DAT<8>
23
Serial B RTS or
PS/2 KB Data
c
VME D24
SCSI A DAT<9>
24
Serial B DTR or
PS/2 Mouse Data
c
VME D25
SCSI A DAT<10>
25
Serial B DCD or
PS/2 KB CLK
c
VME D26
SCSI A DAT<11>
26
Serial B DSR or
PS/2 VCC FIL
c
VME D27
SCSI A DAT<12>
27
Serial B RI or
PS/2 MSCLK
c
VME D28
SCSI A DAT<13>
28
HI TEMP
VME D29
SCSI A DAT<14>
29
POWER FAIL
VME D30
SCSI A DAT<15>
30
SW ALARM
VME D31
SCSI A PAR<1>
31
GND
GND
VCC
32
VCC
VCC
VCC
a.
This is part of the Automatic SCSI termination logic: SCSI A P2 signal will be forced to ground by the mating SCSI connector when
attached. This will disable the active onboard SCSI terminator on the P2 side.
b.
VME64 Standard for P2 pin B3 is RETRY.
c.
Selection is made by solder beads SB1801-1811
Table A-2.
Baseboard VME P2 Connector in PS/2 Mode (Continued)
Pin
Row A
Signal Name
Row B
Signal Name
Row C
Signal Name
Содержание USPIIi-1v
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