HP Vectra - Page 245

MSB 125
multi-mode video adapter card layout
fig.19 81, block diagram fig.
1880
multi-mode video adapter card
HP45918A 79
multiplexed 35
multitasking 13
multiuser 13
N
non-maskable interrupts 22, parity
115, processor board 12
NMI 12,22 parity 115
numeric coprocessor chip 99
num~ric coprocessor, HP45987A 99
o
OBFINT 56,59
OFAH 59
OSC 34
OUT 1 130
OUT 2 130
output table 6.1 76
output buffer interru pt 59
output lines 56
output voltages table 6.1 76
overcurrent protection 76
overvoltage protection 76,77
-OWS 36
p
P2356
page selection 86
PAL 91
parallel cable pin assignments table
11.8 140
parallel data
FDC 46
parallel jumpers 134
parallel
port 121
parallel port addresses, interrupts 135
parallel port cable 139
parallel
port cable pin assignments
table 11.6 136
parallel port interface
to system 135
parity 11, error 114, NMI 115
PCK 12
PFAIL fig.17 78
phase alternation line
91
phase locked loop 46
PLL 4
power availability 29
power/battery connector pin
assignments table 2.8
40
power, BTU output, AC input
table 1.1 4
power consumption table 1.1 4
power supply 73
power supply cabling fig.16 74
power supply components fig.15 74
printer control register 138
printer status register 139
PROCCLK, 80286 clock 14
processor board components 7
processor board, operations
flow
fig.59
processor extension card 53
processor, Intel 80286 13
processor system clock 35
programming model
91
protected mode, Intel 80287 100
protected operating mode 13
R
RAM 10,41
RAM
access 86
RAM organization fig. 6
11
RC line 56
-
READ DATA 52
read path
FDC 46
real address mode, 80286 13
real address operating mode, Intel
80287 99
real
time clock 4
real
time clock plus CMOS RAM 41
real time clock interrupt 18
receive buffer register 125
receiver shift register 130
-
REDWRCUR 51
- REFRESH 34,115
refresh add
ress 34
refresh cycles 11
registers HP45816A, HP45817A 110
registers, parallel port 137
ROM 10
RTC 41
RTC address port 41
RTC data port 41
RT/CMOS plus RAM 41
RTC, NMI mask 41
Index