DEMO908GZ60E Freescale Semiconductor, DEMO908GZ60E Datasheet - Page 9

• Manufacturer Part Number: DEMO908GZ60E
• Description: BOARD DEMO FOR 908GZ60 MCU
• Manufacturer: Freescale Semiconductor
• Series: HC08GRr
• Type: MCUr

Specifications of DEMO908GZ60E

• Design Resources: DEMO908GZ60E Schematic
• Contents: Board, Cable, CD
• Processor To Be Evaluated: 908GZ
• Data Bus Width: 16 bit
• Interface Type: RS-232
• For Use With/related Products: 68HC908GZ60
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

D E M O 9 0 8 R G 6 0
A U G U S T
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OPERATION
The DEMO908GZ60 module provides input and output features to assist in microcontroller ap-
plication development. The user has access to MCU ports through connectors J1 and J2.
Each connector is a 40-position pass-through socket type connector mounted on the bottom of
the module. Insertion of pin headers is possible from the top or bottom of the module. This
allows stacking or connecting the module as needed. Connector J1 may be used to apply
power to the module as well as RS-232 communications signals. Care must be exercised
when using the MCU_PORT to power the module, as only regulated +5V DC should be ap-
plied to this connection. The PWR_SEL option jumper configures the module to accept input
power on connector J1 or to provide regulated +5V to an external device attached to connector
J1.
Multiple option jumper blocks configure module operation. Enabling an associated option re-
quires installing a jumper, or shunt, across the appropriate header pins so that both pins are
connected via the jumper. Removing the shunt disables the associated option.
POWER SUPPLY
Input power may be applied by external connection to a 2 position terminal block and 5V
regulator or directly from connector J1. The input supply is selected by the PWR_SEL option.
TB1 – Terminal Block
The TB1 terminal block allows external voltage to be supplied to the module. Input voltage
should be limited to +6VDC and +16VDC; +9VDC is typical. The terminal block is a 3.55mm,
screw-type, connector that accepts a maximum 18 AWG wire. An on-board voltage regulator
(VR1) converts the input voltage to the +5VDC used by the module. Bulk capacitance on the
regulator input and output provides noise immunity on the power input.
Reverse polarity protection is provided at the Terminal Block input. This will prevent damage
to the module if the input voltage is inadvertently reversed.
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