Specifications

Index
zero bits .................................................... 10-8
timekeeper register
.............................................10-6
timing diagrams
............................................... B-23
trailing edge of ring indicator (TERI)
........................... 8-33
transformer calibration sequence
................................3-20
transformer, 24 V
............................................... 1-8
transmit and receive buffer registers
............................ 8-20
transmitter holding register empty (THRE)
indicator
.................................................... 8-27
interrupt
.................................................... 8-30
transmitter shift register empty (TEMT) indicator
............... 8-27
troubleshooting
STD DOS
................................................... C-4
STD ROM
...................................................C-2
Turbo Debugger
............................................2-7, C-2
-U-
UART .................................................... 1-9, 4-13
unpacking
.......................................................2-2
-V-
vectored interrupts ............................................. 3-12
V20 processor
.............................................. 1-2, 1-6
architectural enhancements
................................... 6-9
description
................................................... 6-1
-W-
WAITRQ* .....................................................6-21
wait-state generator
........................................1-7, 6-21
warranty
...................................................... C-10
watchdog timer
................................................ 4-28
interrupts
................................................... 4-34
Western Digital 8250 serial interface
.............................8-8
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