Zilog Z8F0411 - Manual (Page 25)

MDS General-Purpose Board Development Kit
User Manual
UM016905-1207 MDS-GP Board Features
20
Board Jumper Settings
Table 2 describes jumper set J2, which enables selected serial port
functions. You must not install any of these jumpers if software control is
used to enable serial port functions. The board is shipped with spare,
unconnected shunts on Pin 2 and Pin 10.
Table 2. Serial Port Control
Pins Factory Default Function
1, 2 OFF Enable RS232–1 on J1
3, 4 OFF Enable RS485 on J4 (replacing
RS232–1)
5, 6 OFF Enable IRDA module (replacing
RS232–1)
7, 8 OFF Enable GPS on J15 (replacing
RS232–2)
9, 10 OFF Enable RS232– 2 on J3
11, 12 OFF Enable RF on J17 (replacing
RS232–1)
13, 14 OFF Enable software UART (replacing
RS232–2)