668-0010 Rabbit Semiconductor, 668-0010 Datasheet - Page 105
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: 105 of 312
- Download datasheet (2Mb)
13.1 Overview
Parallel Port F is a byte-wide port with each bit programmable for data direction. These
are simple inputs and outputs controlled and reported in the Port F Data Register (PFDR).
When used as outputs, the Parallel Port F bits are buffered, with the data written to PFDR
transferred to the output pins on a selected timing edge. Either the peripheral clock or the
outputs of Timer A1, Timer B1, or Timer B2 can be used for this function, with each nibble
of the port having a separate select field to control this timing.. Each bit can either be pro-
grammed as an open-drain output or a standard output
These inputs and outputs are also used for access to other peripherals on the chip. As out-
puts, the Parallel Port F outputs can carry the four Pulse-Width Modulator (PWM) outputs.
As inputs, Parallel Port F inputs can carry the inputs to the Quadrature Decoders. When
Serial Port C or Serial Port D is used in the clocked serial mode, two pins of Parallel Port F
are used to carry the serial clock signals. When the internal clock is selected in these serial
ports, the corresponding bit of Parallel Port F is set as an output.
Chapter 13 Parallel Port F
Pin Name
PF7
PF6
PF5
PF4
PF3
PF2
PF1
PF0
Serial Ports A–D
Table 13-1. Parallel Port F Alternate Pin Functions
CLKC
CLKD
—
—
—
—
—
—
Quadrature
Inputs
Decoder
AQD2A
AQD1A
AQD2B
AQD1B
QD2A
QD2B
QD1A
QD1B
13. P
Input Capture
—
—
—
—
×
×
×
×
ARALLEL
PWM3
PWM2
PWM1
PWM0
PWM
—
—
—
—
Outputs
Serial Ports A–D
P
ORT
CLKD
CLKC
—
—
—
—
—
—
F
95
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