Phytec phyCORE-PXA270, Hardware Manual

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RS-232 Interface
10.2 BT-UART
The BT-UART has the same properties as the FF-UART, however
only the signals BT_RxD, BT_TxD, BT_CTS and BT_RTS are
supported. The TTL signals RxD and CTS can be separated from the
RS-232 transceiver at U42 with Jumper JP2 removed from pins 3+4
and 5+6. The RS-232 transceiver for the
BT-UART is located on the Carrier Board.
Pin 5: GND
1
2
3
4
7
6
5
8
9
Pin 9: N.C.
Pin 4: N.C.
Pin 8: BT_CTS
Pin 3: BT_TxD
Pin 7: BT_RTS
Pin 2: BT_RxD
Pin 6: N.C.
Pin 1: N.C.
Figure 29: P2 Pin Assignment, BT-UART
Jumper Default Comment
JP2 This jumper connects the BT-UART to the RS-232
transceiver.
1 + 2 - IR_RxD connected to RS-232 transceiver.
3 + 4 closed BT_RxD connected to RS-232 transceiver.
5 + 6 closed BT_CTS connected to RS-232 transceiver.
Table 39: BT-UART Jumper Configuration
10.3 IR-UART
The IR-UART has the same properties as the FF-UART, however
only the signals IR_RxD and IR_TxD are supported. The TTL level
signal RxD can be separated from the RS-232 transceiver U42 with
Jumper JP2 removed from position 1+2. The RS-232 transceiver for
the IR-UART is located on the Carrier Board. The IR-UART extends
to a 10-pin header connector at X19, to which an optional flat band
cable with a DB 9 socket can be connected.
©
PHYTEC Meßtechnik GmbH 2006 L-668e_1
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