Block Diagram Of The Parallel Jtag Interface - Motorola 56F8346 User Manual

2.8.2 Parallel JTAG Interface Connector
The Parallel JTAG Interface Connector, P1, allows the 56F8346 to communicate with a
Parallel Printer Port on a Windows PC; reference
user can download programs and work with the 56F8346's registers.
pin-out for this connector. When using the parallel JTAG interface, the jumper at JG9
should be removed, as shown in
DB-25 Connector
P_RESET
Jumper Removed:
Enable JTAG I/F
Jumper Pin 1-2:
Disable JTAG I/F
Figure 2-7. Block Diagram of the Parallel JTAG Interface
MOTOROLA
Freescale Semiconductor, Inc.
Table 2-8.
Parallel JTAG Interface
TDI IN
TDO
OUT
P_TRST IN
TMS
IN
TCK
IN
IN
P_DE
IN
+3.3V
EN
JG9
1
2
Technical Summary
For More Information On This Product,
Go to: www.freescale.com
Figure 2-7. Using this connector, the
56F8346
OUT TDI
IN TDO
OUT TRST
OUT TMS
OUT TCK
OUT RESET
OUT DE
Debug Support
Table 2-9 shows the
2-13