2-10
56F805EVM Hardware User’s Manual
MOTOROLA
2.8 External Interrupts
Two on-board push-button switches are provided for external interrupt generation, as
shown in
. S1 allows the user to generate a hardware interrupt for signal line
IRQA. S2 allows the user to generate a hardware interrupt for signal line IRQB. These two
switches allow the user to generate interrupts for his user-specific programs.
Figure 2-6. Schematic Diagram of the User Interrupt Interface
10
NC
23
GND
11
PORT_TDO
24
GND
12
NC
25
GND
13
PORT_CONNECT
Table 2-6. On-Board Host Target Interface Power Source Jumper Selection
JG11
Comment
1–2
Host supplied power
2–3
Target supplied power
Table 2-5. Parallel JTAG Interface Connector Description
P1
Pin #
Signal
Pin #
Signal
56F805
IRQA
IRQA
IRQB
IRQB
+3.3V
+3.3V
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Freescale Semiconductor, Inc.
For More Information On This Product,
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