Usb; Data Logger - Motorola G24 Developer's Manual

RS232-2
The 9-pin, D-type RS232-2 serial port (J330) is the secondary interface to the G24. The G24
RS232 signals are active-low CMOS-level signals (0-2.7 V), which are converted by the
Developer Board to standard RS232 levels for PC communications. The RS232-2 Connector
Pinout (J330) is shown in
Note:

USB

The USB interface connector (J380) is a standard Mini-B USB device interface. The G24 USB
signals are routed directly to this connector. The USB Connector pinout (J380) is shown in
Table 2-6.

Data Logger

The 9-pin D-type Data Logger serial port (J350) is used for development only.
April 1, 2006
Table 2-5.
Only 4 RS232 signals are used.
Table 2-5: RS232-2 Connector Pinout (J330)
Pin #
1
Not used
2
RXD
3
TXD
4
Not used
5
Ground
6
Not used
7
RTS
8
CTS
9 Not used
Table 2-6: USB Connector Pinout (J380)
Pin #
Developer's Kit
Chapter 2: Developer Board and Interfaces Description
Description DTE I/O
In
Out
Out
In
Description
1
VCC
2
D-
3 D+
4 UID (for development
only)
5 Ground
17