PBMCUSLK Freescale Semiconductor, PBMCUSLK Datasheet - Page 22

• Manufacturer Part Number: PBMCUSLK
• Description: PROJECT BOARD FOR MCU
• Manufacturer: Freescale Semiconductor

Specifications of PBMCUSLK

• Module/board Type: Student Learning Kit
• Silicon Manufacturer: Freescale
• Core Architecture: HCS08, S12
• Core Sub-architecture: HCS08, S12
• Silicon Core Number: MC9S08, MC9S12
• Silicon Family Name: S08QG, S12D
• Rohs Compliant: Yes
• For Use With/related Products: HC(S)12(X), HC(S)08, DSP, and ColdFire modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

COM Port
The PBMCUSLK is both MONO8 and RS-232 serial communications ready. Many of these
user features are by default enabled, but can be disconnected through jumper settings. This
section describes each of the features in detail and required jumper configurations.
DB9 Connector
A single DB9 connector shown in figure 12 is provided to support communications applications
development on the PBMCUSLK. Signals from the DB9 connector are routed directly to the
breakout connector labeled COMM DSUB[1..9] located adjacent to the breadboard.
allows implementation of communication protocols not supported on the PBMCUSLK.
Figure 12: COM Port Connector
RS-232
The PBMCUSLK also provides a single RS-232 communications port, configured as a DCE
device. An RS-232 transceiver provides RS-232 signal level to TTL/CMOS logic level
translation services. The COM_EN option header illustrated in figure 13 allows data and
handshake signals to be connected directly to the transceiver. The RS-232 translator operates
at either 3.3V or 5V.
Figure 13: COM_EN Option Header
The COM_SEL option header shown in figure 14 configures the transceiver to operate in
MONO8 or RS-232 modes.
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TXD
RXD
GND
RXD
TXD
RTS
CTS
1
2
3
4
5
1
3
5
7
6
7
8
9
2
4
6
8
RTS
CTS
communications without flow control. A straight-through serial cable may
Pins 1, 4, 6, and 9 are routed to the User I/O Signal Breakout connector
Female DB9 connector that interfaces to the DCE serial port via an
RS232 transceiver. It provides simple 2-wire asynchronous serial
The illustration to the left shows all signals enabled.
Remove shunts to isolate each signal individually
be used to a DTE device such a PC
located adjacent to the breadboard.
Freescale Semiconductor
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