Motorola MVME162, Руководство пользователя

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EIA-530 Connections
MVME162/D2 A-5
A
4 RTS_A Request to Send (A). Output from DTE to DCE when required to transmit
a message.
5 CTS_A Clear to Send (A). Input to DTE from DCE to indicate that message
transmission can begin.
6 DSR_A Data Set Ready (A). Input to DTE from DCE to indicate that the DCE is
ready to send or receive data. In DCE configuration, always true.
7 SIG GND
Signal Ground.
Common return line for all signals.
8 DCD_A Data Carrier Detect (A). Receive line signal detector output from DCE to
DTE to indicate that valid data is being transferred to the DTE on the RxD
line.
9 RxC_B
Receive Signal Element Timing—DCE (B).
Control signal that clocks
input data.
10 DCD_B Data Carrier Detect (B). Receive line signal detector output from DCE to
DTE to indicate that valid data is being transferred to the DTE on the RxD
line.
11 TxCO_B Transmit Signal Element Timing—DTE (B). Control signal that clocks
output data.
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.
Table A-4. Serial Port B EIA-530 Interconnect Signals (Continued)
Pin
Number
Signal
Mnemonic
Signal Name and Description