Pin name
(Processor pin)
[RabbitCore 2000 pin]

Function (Parallel I/O)

Function (I/O strobe)

Alternate functions

PE0 (30) [J1-36]

input or output (optionally timer synchronized)

read strobe, write strobe, or both for I/O addresses 0000-1FFF

External interrupt (INT0A)

PE1 (29) [J1-35]

read strobe, write strobe, or both for I/O addresses 2000-3FFF

External interrupt (INT1A)

PE2 (26) [J1-34]

read strobe, write strobe, or both for I/O addresses 4000-5FFF

PE3 (25) [J1-33]

read strobe, write strobe, or both for I/O addresses 6000-7FFF

PE4 (24) [J1-32]

read strobe, write strobe, or both for I/O addresses 8000-9FFF

External interrupt (INT0B)

PE5 (23) [J1-31]

read strobe, write strobe, or both for I/O addresses A000-BFFF

External interrupt (INT1B)

PE6 (22) [J1-30]

read strobe, write strobe, or both for I/O addresses C000-DFFF

PE7 (21) [J1-29]

read strobe, write strobe, or both for I/O addresses E000-FFFF

Used for slave chip select (negative active) if slave port is active