OP7100
Index
119
H
handshaking
RS-232 ................................... 38
Hayes Smart Modem ................. 39
headers ....................................... 96
J1 ........................................... 96
J10 ......................................... 96
J11 ................................... 40, 96
J2 ........................................... 96
J3 .................................... 30, 96
J4 .................................... 96, 97
J5 .................................... 34, 96
J6 ............................. 21, 34, 96
J7 .................................... 35, 96
J8 ........................................... 96
J9 .................................... 41, 97
JP1 ......................................... 31
JP2 ......................................... 31
JP3 .................................. 36, 37
JP4 ......................................... 37
hitwd
.......................... 27, 28, 91
hysteresis circuit
selecting external resistors for
voltage divider ................... 28
I
inputs/outputs
devices ................................. 102
map ...................................... 102
space .................................... 102
installation
compressing gasket ................ 87
guidelines ............................... 85
mounting methods .................. 86
strengthening bracket ............. 87
int
type specifier, use .................. 92
interface
asynchronous serial ports ....... 43
serial communications ........... 50
interrupts ..................... 44–46, 106
interrupt vectors ............ 44, 106
default .............................. 106
power-failure .................. 26, 107
priorities ............................... 107
serial communication ............. 38
J
jumper settings ........................... 97
contrast control ............... 31, 97
frame ground ................... 85, 97
J4 .................................... 21, 97
J9 .................................... 41, 97
JP1 .................................. 31, 97
JP2 .................................. 31, 97
JP3 .................................. 36, 97
JP4 .................................. 37, 97
JP5 .................................. 85, 97
LCD background ............ 31, 97
program/run mode .......... 21, 97
programming via Serial Port 0 ... 21
RS-485 termination resistors 40, 97
serial communication 36–37, 97
K
keypad interface ......................... 34
keypad programming ................. 81
reading keypad ....................... 81
scanning keypad ..................... 81
L
LCD .................................... 13, 30
background color ................... 31
contrast adjustment ................ 30
contrast control jumper configu-
rations ................................ 31
dimensions ............................. 94
manual contrast adjustment ... 31
software contrast adjustment . 30
LCD controller .................... 24, 32
handling applications developed
for older chip ..................... 73
identifying new part ............... 33