ZiLOG System 8000 Hardware Reference Manual page 343

HRM
Zilog
HRM
TTYO TRANSMIT MODEM ERROR STATUS1 :
##,
DCD AND/OR CIS
SET
An
erro~
has occurred in polled-mode testing of
the
t~ansmit
modem signals. RTS and DTR were
reset in the receive modem, but nCD and/or CTS
failed to be reset in the transmit modem. Check
the
interconnecti~g
cable.
TTY# RECEIVE MODEM ERROR STATUS2 :
##,
DCD NOT TURNED
BACK ON
Error in polled-mode testing of medem signals.
RTS and DTR were set high in the transmit modem,
but the expected statu3 in the
~ec~i{e
modem, CT3
low and DeD high, did not
occu~.
TTY# TRANSMIT MODEM ERROR STATUS2 :
on,
CTS
Nor
TURNED
BACK
ON
Error in polled-mode
te3ti~g ~f
modem
DTR was set in the receive modem, b~t the
status in the transmit modem, CTS high
low, did not occur.
SPEED:
####
BAUD, TEST CYCLE
U#
sig:1a13.
expected
aDd
DCD
Displayed at the beginning of each interaction of
the interrupt mode test. The interrupt mode test
is similar to the polled mode te3t,
ex~ept t~~~
SIO character received interrupts are used tJ
3i3~
nal the receipt of each character. All characters
from
00
to FF are transmitted in ~ach direction
for each of the standard line speeds:
19,200,
9600, 4800, 1200, 300,
and
110
baud. The inter-
rupt mode test continues until
a
character
is
Input
0"(1
the console.
When
a character is
L1:J~::-',
the test terminates on completion of the current
oyala. Th8 LAST CYCLE display appears after the
test cycle number, indicating that no ne~ cycle
\o1il1 be started.
ERROR: INTERRUPT NOT RECEIVED, TTY#, FAILED ON CHARAC-
TER tIff
Character-received interrupt failed to occur in
interrupt mode testing ("status affects vectors" :
A-112
Zilog
A-112