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Signal
NIDO
NIDOO
NID01
NID02
NID03
NID04
NID05
NID06
NID07
NID08
NID09
NID010
NID011
NID012
NID013
NID014
NID015
NIDOP
NIFC
NIOSB
NMI
NMID
NMYPA
NPAO
NPA1
NPA2
NPDO
NPDOP
NPFW
NPI
NPKPWR
NPOLL
NPSTLED
NPV
NSELFT
NSTLED
NSTS
NSYSPU
NWAIT
POLL
PPON
PST
PWMEN
READ
Definition
lIO cage door open (negative true). OR'd with NPDO.
I/O bus input/output data bit 0 (negative true).
lIO bus input/output data bit 1 (negative true).
lIO bus input/output data bit 2 (negative true).
lIO bus input/output data bit 3 (negative true).
lIO bus input/output data bit 4 (negative true).
lIO bus input/output data bit 5 (negative true).
lIO bus input/output data bit 6 (negative true).
lIO bus input/output data bit 7 (negative true).
lIO bus input/output data bit 8 (negative true).
lIO bus input/output data bit 9 (negative true).
lIO bus input/output data bit 10 (negative true).
lIO bus input/output data bit 11 (negative true).
lIO bus input/output data bit 12 (negative true).
lIO bus input/output data bit 13 (negative true).
lIO bus input/output data bit 14 (negative true).
I/O bus input/output data bit 15 (negative true).
I/O cage door open (negative true.
I/O bus interface clear (negative true).
I/O bus data transfer strobe (negative true).
Non-maskable interrupt.
Non -maskable interrupt.
Motherboard Pinout Data
C-5
HP-CIO card recognized its address has been asserted (negative true).
I/O bus peripheral address bit 0 (negative true).
I/O bus peripheral address bit 1 (negative true).
I/O bus peripheral address bit 2 (negative true).
Panel door open (negative true). OR'd with NIDO.
Panel door open (negative true). Signals SCM board.
Power fail warning (negative true).
Not pop in (negative true). Resets the stack.
Shut down command indicator due to peak power (negative true).
I/O bus interface poll (negative true).
Power supply overtemperature (negative true).
Not power valid; all outputs in spec (negative true).
Leading edge causes power supply to send stack into self-test via NSYSPU and NPI
(negative true). Originates on SCM board.
Stack overtemperature (negative true).
lIO bus status (negative true).
Not system pop unsynchronized (negative true). Used with NPI to cause stack to
perform a self-test.
lIO bus lengthen 10SB (negative true).
lIO bus interface poll.
Primary power on; all outputs in spec.
Power supply temperature indicator; connected to FANCTL.
Pulse width modulator enable.
lIO bus data direction (positive true: high indicates data to lOP).
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