PBMCUSLK Freescale Semiconductor, PBMCUSLK Datasheet - Page 23

• 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

Figure 13: COM_SEL Option Header
Translated RS-232 signals TX and RX are available to the user at the signal breakout header
labeled COMM TXD and RXD located adjacent to the breadboard. Translated handshaking
signals RTS and CTS are also available. The user will need to configure hand-shaking as
required by the communications application used.
To ease application development, communications signals TX and RX are connected the
MCU_PORT connect at pins 5 & 7 respectively. This simplifies cable routing when using the
PBMCUSLK and an attached module. The MCU_COM option header is used to route these
signals from the on-board transceiver to the MCU_PORT headers. To use the signals as
general-purpose I/O, simply remove the shunts at the MCU_COM option header as described
in figure 15.
Figure 14: MCU_COM Option Header
MON08
MON08 communications are also supported through the COM connector supporting serial
monitor operation on HC08 modules. The COM_SEL, shown in figure 14, selects between
RS-232 operation and MON08 operation.
A single wire MON08 interface is available to the user at the signal breakout header labeled
COMM MONO8 located adjacent to the breadboard. A zener diode and resistor combination
provides the high-voltage (VTST) necessary to force MON08 monitor mode. This voltage is
fixed at 8.2V and may be excessive for 3.3V HC08 MCU’s. It is the users responsibility to
reduce the VTST voltage level if necessary. VTST is available when the board is powered
either from the VIN connector or from the NI-ELVIS workstation.
Freescale Semiconductor
MCU_COM
●
●
●
●
COM_SEL
COM_SEL
●
●
●
●
●
●
TXD
RXD
Enable RS-232 signals to
MCU_PORT
DESCRIPTION:
Selects MONO8 communications
Selects RS-232 communications
MCU_COM
● ●
● ●
TXD
RXD
Disable RS-232 signals to
MCU_PORT
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