User's Guide

Hardware Description
MOTOROLA Introduction and Configuration 1-5
1.3.2 RS232 Connector J102
The RS232 port is J102, a DB9 connector. A standard straight-through DB9 serial cable can be used with a
PC. The port follows the standard RS232 DCE DB9 convention as shown in Figure 1-3. The RS232 is
normally used to connect the SARD to a PC. With an installed bootloader program such as the Sensor
Applications Reference Design (SARD) Embedded Bootloader program, described in document number
MC13192FLUG/D, it can also be used to program the MCU.
Figure 1-3. DCE-DB9 Female Connector (Looking into the SARD Connector)
Figure 1-4. SARD Component Layout
DCE Ready
Clear to Send
Request to Send
Ring Indicator
Receive Line Signal Detect
Transmitted Data
Received Data
DTE Ready
Signal Ground
1
2
3
4
5
6
7
8
9
Shield