Rs-232C I/O Connector P3 Pin Assignments - Motorola MPC505EVB User Manual

Table 4-3. RS-232C I/O Connector P3 Pin Assignments
Pin Mnemonic
1 BDCD*
2 BRXD
3 BTXD
4 BDTR*
5 GND
6 BDSR*
7 BRTS
8 BCTS*
9 NC
MPC505EVBUM/D
DATA CARRIER DETECT – An output signal used to indicate an
acceptable received line (carrier) signal has been detected.
RECEIVE DATA – RS-232C serial input signal.
TRANSMIT – RS-232C serial output signal.
DATA TERMINAL READY – An output line that indicates an on-line/in-
service/active status.
GROUND
DATA SET READY – An output signal (held high) that indicates an on-
line/in-service/active status.
REQUEST TO SEND – An input signal used to request permission to
transfer data.
CLEAR TO SEND – An output signal that indicates a ready-to-transfer
data status.
Not Connected
SUPPORT INFORMATION
Signal
4-5