Murata Electronics North America DNT500FP Manual Do Utilizador
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©2008 by RF Monolithics, Inc.
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DNT900 - 11/05/08
Figure 5.6.2
Figure 5.6.2 shows the connectors to the right of the DNT500P mounting socket. Jumper pin set J9 allow
the DNT500P reset line to be routed to JTAG interface connector J10. J18 allows the DNT500P reset line
to be grounded. Note that the JTAG operation is usually limited to factory testing. For normal operation
pin sets J9 and J18 should not have a shorting block installed. Jumper pin sets J12 and J13 normally
have shorting plugs installed as shown in Figure 5.6.2, which connects the DNT500P UART0_TXD and
UART0_RXD pins to the respective serial data lines on the evaluation board. It is possible to connect
directly to UART0_TXD and UART0_RXD by moving the jumpers over. In this case, J1 1-1 is the input for
transmitted data and J1 1-2 is the output for received data. Note this a 3 V logic interface. Placing a short-
ing plug on jumper pin set J6 allows the DNT500P to be powered up in boot loader mode. This is used for
factory code loads and functional testing. The DNT500 has its own boot loader utility that allows the
protocol firmware to be installed with a terminal program that supports YMODEM. Pin strip J7 provides
access to various DNT500 pins as shown on the silkscreen. Pressing switch SW2 will reset the
DNT500P.
the DNT500P reset line to be routed to JTAG interface connector J10. J18 allows the DNT500P reset line
to be grounded. Note that the JTAG operation is usually limited to factory testing. For normal operation
pin sets J9 and J18 should not have a shorting block installed. Jumper pin sets J12 and J13 normally
have shorting plugs installed as shown in Figure 5.6.2, which connects the DNT500P UART0_TXD and
UART0_RXD pins to the respective serial data lines on the evaluation board. It is possible to connect
directly to UART0_TXD and UART0_RXD by moving the jumpers over. In this case, J1 1-1 is the input for
transmitted data and J1 1-2 is the output for received data. Note this a 3 V logic interface. Placing a short-
ing plug on jumper pin set J6 allows the DNT500P to be powered up in boot loader mode. This is used for
factory code loads and functional testing. The DNT500 has its own boot loader utility that allows the
protocol firmware to be installed with a terminal program that supports YMODEM. Pin strip J7 provides
access to various DNT500 pins as shown on the silkscreen. Pressing switch SW2 will reset the
DNT500P.