User`s manual

BL4S100 User’s Manual 119
PE4 Output Serial Flash /CS
Inactive high
PE5 Output Ethernet LINK
Inactive high (LED off)
PE6 Output XBee /RTS Low
PE7 Output Ethernet ACT
Inactive high (LED off)
BUFEN Output /CS (A/D converter)
Inactive high
CLK Output CLK to Rabbit RIO
CPU clock
Table A-3. Use of Rabbit Microprocessor Parallel Ports (continued)
Port I/O Signal Initial State