AN2503 Freescale Semiconductor / Motorola, AN2503 Datasheet - Page 26

• Manufacturer Part Number: AN2503
• Description: Slave LIN Driver for the MC68HC908QT/QY Family
• Manufacturer: Freescale Semiconductor / Motorola

AN2503/D
26
PTA4/OSC2/
PTA5/OSC1/
TCH0/KBI0
TCH1/KBI1
PTA3/RST/
PTA0/AD0/
PTA1/AD1/
PTA2/IRQ/
AD2/KBI4
AD3/KBI5
PTB0
PTB1
PTB2
PTB3
PTB4
PTB5
PTB6
PTB7
KBI2
KBI3
Pin
The driver is designed to use as few pins as possible to reserve some for the
application. The pin usage is described in
Slave LIN Driver for the MC68HC908QT/QY Family
Freescale Semiconductor, Inc.
LIN transceiver enable
9.8304 MHz oscillator.
Programming voltage
LIN transmission (Tx)
For More Information On This Product,
LIN reception (Rx)
MON08 Comm
Push button
Not used
Not used
Reset
LED
LED
LED
LED
Use
Go to: www.freescale.com
Table 8. MC68HC908QY4 Pin Usage
Used for programming/debugging. Can be used to
One timer channel is available in real application.
Must be tied to V
Reception only when using the transceiver.
One timer channel is available in real application.
Used for programming only. Can be used to wake up
Available in real application.
Available in real application.
Must be tied to GND/V
Available in real application.
Used for programming. Can be used instead of
Available in real application.
Available in real application.
Available in real application.
One general-purpose pin for transmission is needed
Available in real application.
Available in real application.
Available in real application.
Available in real application.
One general-purpose pin to enable the transceiver is
test driver with CPU in bidirectional mode (no
debug).
(disconnect when using a transceiver).
the MCU without a regulator (not in this board).
mode.
internal oscillator.
in real application when using a transceiver.
needed in real application when using a transceiver.
Table
DD
when entering monitor mode
Comments
SS
8.
when entering monitor
MOTOROLA