Debug Support
Technical Summary, Rev. 2
Freescale Semiconductor
2-13
Preliminary
2.7.2 Parallel JTAG Interface Connector
The Parallel JTAG Interface Connector, P1, allows the 56F8367 to communicate with a parallel
printer port on a Windows PC; reference
. Using this connector, the user can
download programs and work with the 56F8367’s registers.
shows the pin-out for this
connector. When using the parallel JTAG interface, the jumper at JG3 should be removed, as
shown in
. The printer port interface voltage of +3.3V or +5.0V can be selected by a
jumper on JG19, as shown in
DB-25 Connector
Parallel JTAG Interface
MC56F8367
TDI
TDO
P_TRST
TMS
TCK
P_RESET
OUT
OUT
OUT
OUT
OUT
OUT
IN
IN
IN
IN
IN
IN
EN
TDI
TDO
TRST
TMS
TCK
RESET
JG3
1
2
+3.3V
Jumper Removed:
Enable JTAG I/F
Jumper Pin 1-2:
Disable JTAG I/F
P_DE
OUT
IN
DE
JG19
1
2
3
V
cc
+3.3V
+5.0V
Figure 2-6. Block Diagram of the Parallel JTAG Interface
Содержание 56F8367
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