Jameco Electronics Rabbit 3000 - Manual (Page 284)

User’s Manual 275
(l) The quadrature decoder hardware can be configured to use a 10-bit counter in
place of the existing 8-bit counter.
(m)An option was added to alternatively multiplex PWM outputs, slave chip select
(/SCS), and Serial Ports E and F transmit and receive clocks on other pins.
(n) The Schmitt trigger IC normally required for the low power 32.768 kHz oscil-
lator circuit is now integrated inside the Rabbit 3000A.
NOTE: Based on this modification, a new low-power oscillator circuit is recommended
for use with Rabbit 3000A-based systems. Please refer to TN235, External 32.768 kHz
Oscillator Circuits, for more information on the circuit.