EIA-530 Connections
http://www.motorola.com/computer/literature
B-7
B
12
TxC_B
Transmit Signal Element Timing—DCE (B). Control signal that clocks
input data.
13
CTS_B
Clear to Send (B). Input to DTE from DCE to indicate that message
transmission can begin.
14
TxD_B
Transmit Data (B). Data to be transmitted; output from DTE to DCE.
15
TxC_A
Transmit Signal Element Timing—DCE (A). Control signal that clocks
input data.
16
RxD_B
Receive Data (B). Data which is demodulated from the receive line; input
from DCE to DTE.
17
RxC_A
Receive Signal Element Timing—DCE (A). Control signal that clocks input
data.
18
RTS_B
Request to Send (B). Output from DTE to DCE when required to transmit a
message.
19
LL_A
Local Loopback (A). Reroutes signal within local DCE. In DTE
configuration, always tied inactive and driven false. In DCE configuration,
ignored
20
DTR_A
Data Terminal Ready (A). Output from DTE to DCE indicating that the
DTE is ready to send or receive data.
21
RL_A
Remote Loopback (A). Reroutes signal within remote DCE. In DTE
configuration, always tied inactive and driven false. In DCE configuration,
ignored.
22
DSR_B
Data Set Ready (B). Input to DTE from DCE to indicate that the DCE is
ready to send or receive data. In DCE configuration, always true.
23
DTR_B
Data Terminal Ready (B). Output from DTE to DCE indicating that the DTE
is ready to send or receive data.
24
TxCO_A
Transmit Signal Element Timing—DTE (A). Control signal that clocks
output data.
25
TM_A
Test Mode (A). Indicates whether the local DCE is under test. In DTE
configuration, ignored. In DCE configuration, always tied inactive and driven
false.
Table B-4. MVME761 EIA-530 Interconnect Signals (Continued)
Pin
Number
Signal
Mnemonic
Signal Name and Description
