Advertisement
- 3-. The-. Data output of the UART may
be jumpered to an EIA Driver, a
Current Loop Driver, or a TTL
Driver.
Similarly, the Data input of the
UART may be jumpered to an EIA
Receiver, a Current Loop Receiver,
or a TTL Receiver.
4. Provision is made to monitor any
of the UART Status Signals using
the Control Input Port, or the
interrupt inputs,
STATUS SIGNALS
The SIO Status Signals provided are as
follows: TRANSMIT READY, the negation of
TRANSMIT READY, RECEIVE READY, the negation
Of RECEIVE READY, PARITY ERROR, OVERRUN ER
ROR, and FRAMING ERROR.
An additional Status Signal, SIOS, is
provided to assist in error checking
routines. This signal simply indicates
that one of three error conditions has
occured,(PE,FE,or O E ) . It may be decoded
via the Control Port to determine which
of the three signals is active. This
feature is provided to allow efficient
use of the Control Port in a case where the
complete board configuration is being used.
EXTERNAL INTERFACE CONNECTIONS
The SIO Port has available at a 26 pin
edge connector, all signals necessary
for Standard EIA, Current Loop and TTL
Serial Interfaces.
PARALLEL INPUT/OUTPUT PORTS
The MIO Board provides for 2 identical
8 bit parallel input/output ports.,
BOARD OPTIONS
Board options allow the User to: 1
1. Use one of four types of Input
Strobes: 1.positive edge, 2. negative
MIO
Functional Description
-
Advertisement
