668-0010 Rabbit Semiconductor, 668-0010 Datasheet - Page 108

• Manufacturer Part Number: 668-0010
• Description: IC MPU RABIT3000 55.5MHZ 128LQFP
• Manufacturer: Rabbit Semiconductor

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

13.4 Register Descriptions
98
Bit(s)
Bit(s)
Bit(s)
7:0
7:6
5:4
3:2
1:0
7:4
3:2
1:0
Parallel Port F Function Register
Parallel Port F Control Register
Parallel Port F Data Register
Value
Value
Value
Write
Read
00
00
01
10
11
00
00
01
10
11
0
1
0
1
0
1
The current state of Parallel Port F pins PF7–PF0 is reported.
The Parallel Port F preload register is written with this value for transfer to the
Parallel Port F 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.
The corresponding port bit is a parallel port I/O pin.
The corresponding port bit is a PWM output (PWM3–PWM0).
The corresponding port bit is a parallel port I/O pin.
The corresponding port bit is a Quadrature Decoder input (QD2A–QD2B).
(This value was not used for the Rabbit 3000 chip.).
The corresponding port bit is a parallel port I/O pin.
The corresponding pin pair enables the clock ouputs for Serial Ports C and D
when the serial port is configured for internal clock generation or is a Quadrature
Decoder input (QD1A–QD1B).
(PFDR)
(PFCR)
(PFFR)
Description
Description
Description
Rabbit 3000 Microprocessor User’s Manual
(Address = 0x003C)
(Address = 0x003D)
(Address = 0x0038)