Specifications

Index
STD DOS ......................................... 2-7, 3-4, 3-8, 5-3
cable requirements
.......................................... 2-16
configuring the ZT 8809A
................................... 2-13
default jumper configuration
............................ 2-14, 5-5
default memory map
.................................... 2-20, 5-4
jumper configuration
........................................A-56
640K RAM jumper configuration
............................. 5-7
memory map with 640K on-board RAM
...................... 5-6
memory requirements
....................................... 2-15
powering up
.................................................2-17
upgrading ZT 8806/8807 systems
............................ 2-24
use of counters
............................................. 11-25
STD ROM
cable requirements
.......................................... 2-10
configuring the ZT 8809A
.................................... 2-9
default memory map
.................................... 2-21, 5-8
development system
.......................................... 2-7
jumper configuration
............................. 2-10, 5-9, A-55
memory requirements
........................................ 2-9
powering up
.................................................2-11
use of counters
............................................. 11-25
SYSRESET*
............................................ 3-26, 6-20
system battery fail
............................................. 3-22
system requirements
.............................................2-4
environmental requirements
...................................2-6
physical requirements
.........................................2-4
power requirements
...........................................2-4
systick timer
.................................................... 3-8
-T-
technical assistance ............................................ C-11
theory of operation
.............................................. 3-1
timechip comparison register
................................... 10-5
timechip register
............................................... 10-7
AM/PM 12/24 hour mode
................................... 10-8
oscillator and reset bits
...................................... 10-8
xiii