Motorola 56F8323 User Manual

2-8 56F8323EVM User Manual MOTOROLA
2.5 Debug Support
The 56F8323EVM provides an on-board Parallel JTAG Host Target Interface and a JTAG
interface connector for external Target Interface support. Two interface connectors are
provided to support each of these debugging approaches. These two connectors are
designated the JTAG connector and the Host Parallel Interface Connector.
2.5.1 JTAG Connector
The JTAG connector on the 56F8323EVM allows the connection of an external Host
Target Interface for downloading programs and working with the 56F8323’s registers.
This connector is used to communicate with an external Host Target Interface which
passes information and data back and forth with a host processor running a debugger
program. Table 2-5 shows the pin-out for this connector.
When this connector is used with an external Host Target Interface, the parallel JTAG
interface should be disabled by placing a jumper in jumper block JG3. Refer to Table 2-6
for this jumper’s selection options.
Table 2-5. JTAG Connector Description
J3
Pin # Signal Pin # Signal
1 TDI 2 GND
3 TDO 4 GND
5 TCK 6 GND
7 NC 8 KEY
9 RESET
10 TMS
11 +3.3V 12 NC
13 DE
14 TRST
Table 2-6. Parallel JTAG Interface Disable Jumper Selection
JG3 Comment
No jumpers Enable On-board Parallel JTAG Interface
1–2 Disable on-board Parallel JTAG Interface
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cale Semiconductor,
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Freescale Semiconductor, Inc.
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Motorola 56F8323 Specifications

General

Brand	Motorola
Model	56F8323
Category	Control Unit
Language	English