Motorola CPV5300 CompactPCI, Руководство по установке

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Pin Assignments for CPV5300 SBC Front Panel and CPV5300 TM Rear Panel Connectors
A-12
A
21 GND Ground 55 ATN- Driven as an initiator
when a special condition
occurs.
22 GND Ground 56 GND Ground
23 GND Ground 57 BUSY- Driven by initiator as a
hand-shake during
arbitration
24 GND Ground 58 ACK- An initiator asserts ACK
to indicate a byte is ready
for or was received from
the target
25 GND Ground 59 RESET- hard reset
26 GND Ground 60 MSG- asserted = message phase
deasserted =
command/data phase
27 GND Ground 61 SEL- Driven after a successful
arbitration to select as an
initiator or reselect as a
target
28 GND Ground 62 CD- asserted = command or
message phase
deasserted = data phase
29 GND Ground 63 REQ- Target asserts REQ to
indicate a byte is ready or
is needed by target
30 GND Ground 64 IO- asserted = In
deasserted = Out
31 GND Ground 65 D8 SCSI data lines
32 GND Ground 66 D9 SCSI data lines
33 GND Ground 67 D10 SCSI data lines
34 GND Ground 68 D11 SCSI data lines
Table A-11. SCSI Connector Pin Assignments for the CPV5300 Single
Board Computer and CPV5300 Transition Module (Continued)
Pin
Number
Signal
Mnemonic
Signal
Description
Pin
Number
Signal
Mnemonic
Signal Description