668-0010 Rabbit Semiconductor, 668-0010 Datasheet - Page 92
![no-image](/images/no-image-200.jpg)
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: 92 of 312
- Download datasheet (2Mb)
11.4 Register Descriptions
82
Bit(s)
Bit(s)
Bit(s)
7:0
7:6
5:4
3:2
1:0
3:0
7
6
5
4
Parallel Port D Function Register
Parallel Port D Control Register
Parallel Port D Data Register
Value
Value
Value
Write
Read
00
00
01
10
11
00
00
01
10
11
x
0
1
x
0
1
x
The current state of Parallel Port D pins PD7–PD0 is reported.
The Parallel Port D buffer is written with this value for transfer to the Parallel
Port D output register on the next rising edge of the peripheral clock.
These bits are ignored and should be written with zero.
The upper nibble peripheral clock is perclk/2.
The upper nibble peripheral clock is the output of Timer A1.
The upper nibble peripheral clock is the output of Timer B1.
The upper nibble peripheral clock is the output of Timer B2.
These bits are ignored and should be written with zero.
The lower nibble peripheral clock is perclk/2.
The lower nibble peripheral clock is the output of Timer A1.
The lower nibble peripheral clock is the output of Timer B1.
The lower nibble peripheral clock is the output of Timer B2.
Parallel Port D pin 7 is always a parallel port I/O pin.
Parallel Port D pin 6 is a parallel port I/O pin.
Parallel Port D pin 6 drives ATxA.
Parallel Port D pin 5 is always a parallel port I/O pin.
Parallel Port D pin 4 is a parallel port I/O pin.
Parallel Port D pin 4 drives ATxB.
Parallel Port D pins 3:0 are always parallel port I/O pins.
(PDDR)
(PDCR)
(PDFR)
Description
Description
Description
Rabbit 3000 Microprocessor User’s Manual
(Address = 0x0060)
(Address = 0x0064)
(Address = 0x0065)
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