Jtag Connector; Jtag Connector Description; Parallel Jtag Interface Disable Jumper Selection - Motorola 56F827 Hardware User Manual

2.8.1 JTAG Connector

The JTAG connector on the 56F827EVM allows the connection of an external Host
Target Interface for downloading programs and working with the 56F827'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 2-4 shows the pin-out for this connector.
Pin #
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 JG1. See
this jumper's selection options.
Table 2-5. Parallel JTAG Interface Disable Jumper Selection
2-8
Freescale Semiconductor, Inc.
Table 2-4. JTAG Connector Description
Signal
1 TDI
3 TDO
5 TCK
7 NC
9 RESET
11 +3.3V
13 NC
JG1
No jumpers On-board Parallel JTAG Interface Enabled
1–2 Disable on-board Parallel JTAG Interface
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J3
Pin # Signal
2 GND
4 GND
6 GND
8 KEY
10 TMS
12 NC
14 TRST
Comment
for
Table 2-5
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