ZiLOG Z80 Handbook page 259

BYTESAVERTM board. This board contains a maximum of eight 1K
byte 2708 EPROMs. One of the PROMs contains software that con-
trols the on-board PROM programmer hardware. Using the BYTE-
SAVER, any of the other PROMs on the board may be programmed
in a few seconds by copying a 1K "memory image" of the program,
or data in memory.
OTHER CROMEMCO BOARDS
A T-UARTTM board provides two serial I/O ports, two 8-bit paral-
lel I/O ports, and ten independent programmable internal timers.
Baud rates of 110 to 9600 baud are software selectable.
A Digital Interface Board provides digital-to-analog, analog-to-
digital and parallel I/O output and input. Up to seven channels of
analog inputs (-2.56V to +2.54V) may be input with the board
and converted to eight bits of digital data. The same number of
channels are provided for analog outputs (-2.56V to +2.54V) which
are converted from 8-bit digital data. In addition to the a-d and d-a
conversions, eight bits of data may be input, or output, to a separate
port for other control applications. The Digital Interface Board al-
lows a Z-1, or Z-2, to interface to a variety of control applications,
including real-time process control. Conversions are 5.5 µs, which
are quite fast for a card of this kind.
Other Cromemco hardware are the TV DAZZLERTM, which pro-
vides color graphics capability using an ordinary television, wire-
wrap boards, extender cards, and a "joystick" console for analog-
control inputs.
CROMEMCO Z-1 AND Z-2 MICROCOMPUTER SYSTEMS
The Z-1 Microcomputer System includes the Z-1 chassis with
power supply (28 amp), twenty-two S-100 bus type card slots, and
front control panel. The control panel allows an operator to examine
and modify memory locations, perform a reset or external clear
function, single step the CPU a cycle at a time, or execute the pro-
gram from a given location. Indicator lights display the address and
data-bus contents and system status.
The Z-1 includes the Z-80 CPU board, two 4K static RAM boards,
an 8K PROM (BYTESAVERTM) board with eight 2708 EPROMs,
a resident monitor in PROM, and an RS-232 serial input/output
interface.
The Z-2 Computer System in kit form includes the Z-2 chassis
with 30-Amp power supply, one card socket and guide, front panel,
and CPU board. In assembled form, the Z-2 includes the above items
plus all 21 card sockets and guides and a cooling fan.
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