HP Vectra - Page 244

internal flexible disc drive,
performance 1.2Mb table 9.3 108
internal registers 90
interrupt controller 20
interrupt controller structure fig. 9
21
interrupt enable register 126
interrupt identification register 127
interrupt mask register 22
interrupt priority table 128
interrupt request
[RTC] 41
-INTHP 56
-INTHP [P23] 59
INRPT 127
110 address map table 2.6 37,38
110 address switch settings table 9.5
111
110 channel budget 78
-110 CHCK 32
110 CHCK signal 22
-110 CH ROY 32
-110 CS16 32
110 device 23
I/O expansion card, dimensions fig. 3 5
I/O map 36
110 write cycle 33
-lOR 32
lOR 109
110 register table 6.8 92
-lOW 33
IRQ 138
IRQ3-IRQ7 33
IRQ646
IRQ841
IRQ9-IRQ12 33
IRQ1433
IRQ1533
J
JI 28, configurations FIG. 27 122
J2 28, configurations fig. 28 135
J328
J428
J528
J628
J728
J1028
J11 28
J1228
J1328
J1528
JU2 fig. 7 16
jumpers 44
jumpers and connectors fig. 19 58
jumper
W2 configurations fig. 20 82
K
KBINH 57
keyboard controller 55
keyboard interface 55
keyboard interface fig.13 58
keyboard path 56
keyboard
to system interface 59
keyboards and character setsAl
keystrokes
61
L
LA 17-LA23 33
light pen 96
light pen connector pin assignments
table 6.2 84
light pen latch 96
line control register 125,129
line
dropout 75
line status register
131
lithium battery pack 41
logical keyboard driver 59
LSB 125
M
MASTER 32,33
-MASTER 33
media 106
-MEM CS16 34
memory 10
memory, hard disc subsystem 110
memory address space 33
memory address wrapping
86
memory expansion cards 115, pin
assignments tables 2.4,2.5 115
memory map, protected mode 12
memory map real address mode 12
memory read cycle 35
memory refresh cycle 34
memory
write cycle 35
-MEMR 35
-MEMW 35
mode control register 88,93
modem control register 130
modem status register 132
modes
of operation 88
-
MOTEN1 51
- MOTEN2 51
Index