Echelon Series 6000 Chip databook - Manual (Page 119)

addition to the parallel or muxbus object for the following device types: PL 3120-
E4, PL 3150, or PL 3170. For Series 6000 devices, you can also declare the IO11 pin
as a bit input or output in addition to the parallel (master or slave A mode) or
muxbus object; the IO11 pin serves as an IRQ pin for the parallel (slave B mode)
object.
• Direct I/O object types (such as bit, nibble, byte) can be declared in any
combination. Timer/counter, serial, and neurowire I/O object declarations override
the pin directions of any overlaying direct I/O object types.
• The quadrature and dualslope input objects cannot be multiplexed with other
input objects on timer/counter 1. The edgelog input uses both timer/counters and is
exclusive of any other timer/counter objects.
• The bitshift I/O objects cannot be declared on the same I/O pins as timer/counter
objects. Direct I/O objects can be overlaid with bitshift I/O objects. Two adjacent
bitshift I/O objects cannot share any I/O pins.
Series 6000 Chip Data Book 107