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Rabbit 6000 User’s Manual
digi.com
106
10. P
ARALLEL
P
ORT
C
10.1 Overview
Parallel Port C is a byte-wide port with each bit programmable for data direction and drive level. These are
simple inputs and outputs controlled and reported in the Port C Data Register (PCDR).
All the Parallel Port C pins have alternate output functions, and most of them can be used as inputs to vari-
ous on-chip peripherals.
The drive strength and slew rate can be individually controlled for each Parallel Port C pin. In addition, a
75 k
pullup or pulldown resistor can be enabled on each pin.
Note that it is possible for either Flexible Interface Module to use any of the parallel ports. See Chapter 33
for more information.
NOTE:
I0-I7 are strobes for External I/O
Table 10-1. Parallel Port C Pin Alternate Output Functions
Pin Name
Alt Out 0
Alt Out 1
Alt Out 2
Alt Out 3
PC7
TXA
I7
PWM3
SCLKC
PC6
TXA
I6
PWM2
TXE
PC5
TXB
I5
PWM1
RCLKE
PC4
TXB
I4
PWM0
TCLKE
PC3
TXC
I3
TIMER C3
SCLKD
PC2
TXC
I2
TIMER C2
TXF
PC1
TXD
I1
TIMER C1
RCLKF
PC0
TXD
I0
TIMER C0
TCLKF
Summary of Contents for 6000
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