Freescale Semiconductor DEMO9S08DZ60 Demo Board DEMO9S08DZ60 DEMO9S08DZ60 Manual De Usuario

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DEMO9S08DZ60
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D E M O 9 S 0 8 D Z 6 0
D E C E M B E R   2 ,   2 0 0 6
12
Table 4: COM Connections
MCU Port
COM Signal
I/O PORT
CONNECTOR
PTE0/TXD1
TXD
J1-5
PTE1/RXD1
RXD
J1-7
COM Connector
A standard 9-pin Dsub connector provides external connections for the SCI0 port.  The Dsub
shell is connected to board ground through a ferrite bead.  The ferrite bead provides noise
isolation on the RS-232 connection.  The figure below details the DB9 connector.
Figure 5: COM Connector
4, 6
1
6
1, 4
TXD
2
7
RTS
RXD
3
8
CTS
1, 6
4
9
NC
GND
5
Female DB9 connector that interfaces to the MCU internal SCI0 serial
port via the RS232 transceiver. Flow control is provided at test points on
the board.
Pins 1, 4, and 6 are connected together.
LIN Communications
The DEMO9S08DZ60 applies the MC33661D Local Interconnect Interface (LIN) physical layer
(PHY) for use in developing automotive control applications.  The MC33661D physical layer
interface (PHY) supports LIN bus functionality for input voltages between +6V and +18V.  Only
power applied to the PWR connector will enable the LIN bus.  Two, 4-pin, Molex connectors
provide off-board connectivity.  The figure below shows the pin-out of the LIN connector
looking into the connector.
Figure 6: LIN Connector
LIN I/O
4
3
V
SUP
GND
2
1
GND
REF:  Mating Connector, Molex P/N,
39-01-2040, Housing
39-00-0039, Socket
NOTE:  +12V must be applied to the PWR connector when using the LIN functionality.
LIN_EN
The LIN_EN option header connects or disconnects the LIN PHY to SCI1.
Figure 7: LIN_EN Option Header
LIN_EN
4
3
TX
Enable LIN TX
2
1
RX
Enable LIN RX
NOTE:  +12V must be applied to the PWR connector when using the LIN functionality.