DEMO9S08LG32 Freescale Semiconductor, DEMO9S08LG32 Datasheet - Page 11

• Manufacturer Part Number: DEMO9S08LG32
• Description: DEMO BOARD FOR LG32 FAMILY MCU
• Manufacturer: Freescale Semiconductor
• Type: MCUr

Specifications of DEMO9S08LG32

• Contents: Board, CD
• Processor To Be Evaluated: MC9S08LG32x
• Data Bus Width: 8 bit
• Interface Type: USB
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Silicon Manufacturer: Freescale
• Core Architecture: HCS08
• Core Sub-architecture: HCS08
• Silicon Core Number: MC9S08
• Silicon Family Name: S08LG
• Rohs Compliant: Yes
• For Use With/related Products: MC9S08LG32
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

D E M O 9 S 0 8 L G 3 2
F E B R U A R Y
2 4 ,
2 0 0 9
U S E R
G U I D E
CAUTION:
Do not exceed available current from USB-BDM or on-board regulator when
sourcing power through connector J1 to external circuitry.
RESET SWITCH
The RESET switch applies an asynchronous RESET to the MCU. The RESET switch is
connected directly to the RESET* input on the MCU. Pressing the RESET switch applies a
low voltage level to the RESET* input. A pull-up bias resistor allows normal MCU operation.
Shunt capacitance ensures an adequate input pulse width.
LOW VOLTAGE RESET
The MC9S08LG32 utilizes an internal Low Voltage Detect (LVD) circuit. The LVD holds the
MCU in reset until applied voltage reaches an appropriate level. The LVD also protect against
under-voltage conditions. Consult the MC9S08LG32 reference manual for details LVD
operation.
TIMING
The DEMO9S08LG32 internal timing source is active from RESET by default. An external 32
kHz XTAL oscillator, configured for low-power operation, is also provided. Refer to the
MC9S08LG32 Reference Manual for details on configuring the selected timing source.
COMMUNICATIONS
The DEMO9S08LG32 supports serial communications through the integrated USB-BDM and
an on-board, low-voltage, RS-232 transceiver. The COM_SEL header selects the serial path
applied. The 9-pin, D-Sub, connector at COM1 is not installed in default configurations.
USB SERIAL LINK
The integrated USB-BDM provides a serial link from the target MCU to the host PC through the
host application. Refer to the P&E Multilink documentation for further details.
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