668-0010 Rabbit Semiconductor, 668-0010 Datasheet - Page 83
668-0010
Manufacturer Part Number
668-0010
Description
IC MPU RABIT3000 55.5MHZ 128LQFP
Manufacturer
Rabbit Semiconductor
Datasheet
1.20-668-0011.pdf
(312 pages)
Specifications of 668-0010
Rohs Status
RoHS non-compliant
Processor Type
Rabbit 3000 8-Bit
Speed
55.5MHz
Voltage
2.5V, 2.7V, 3V, 3.3V
Mounting Type
Surface Mount
Package / Case
128-LQFP
Features
-
Other names
316-1016
- Current page: 83 of 312
- Download datasheet (2Mb)
10.1 Overview
Parallel Port C is a byte-wide port that has four inputs and four outputs. The even-numbered
ports—PC0, PC2, PC4, and PC6—are outputs. The odd-numbered ports—PC1, PC3,
PC5, and PC7—are inputs.. These are simple inputs and outputs controlled and reported in
the Port C Data Register (PCDR).
The Parallel Port C pins may be used as serial port pins, and the inputs can be used as
inputs to the Input Capture peripheral.
After reset, the default condition for Parallel Port C is four outputs (the even-numbered
bits) and four inputs (the odd-numbered bits). For compatibility with the Rabbit 2000
microprocessor, these outputs are driven with a logic zero (low) on PC6 and a logic one
(high) on PC4, PC2, and PC0. When PCDR is read, the logic level on the pin is returned.
If the pin is an output, the value it is set to is returned.
Chapter 10 Parallel Port C
Pin Name
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
Table 10-1. Parallel Port C Alternate Pin Functions
Serial Ports A–D
Outputs
TXA
TXB
TXC
TXD
—
—
—
—
10. P
Serial Ports A–D
RXA
RXB
RXC
RXD
—
—
—
—
ARALLEL
Inputs
Input Capture
—
—
—
—
×
×
×
×
P
ORT
C
73
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