20-668-0024 Rabbit Semiconductor, 20-668-0024 Datasheet - Page 114

• Manufacturer Part Number: 20-668-0024
• Description: IC CPU RABBIT4000 128-LQFP
• Manufacturer: Rabbit Semiconductor

Specifications of 20-668-0024

• Processor Type: Rabbit 4000 8-bit
• Speed: 60MHz
• Voltage: 2.5V, 2.7V, 3V, 3.3V
• Mounting Type: Surface Mount
• Package / Case: 128-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Other names: 20-668-0022; 316-1078

104
Bit(s)
Bit(s)
Bit(s)
Bit(s)
Bit(s)
7:2,0
Parallel Port E Data Direction Register
7:0
7:0
7:0
7:1
Parallel Port E Drive Control Register
0
1
Parallel Port E Function Register
Parallel Port E Bit 0 Register
Parallel Port E Bit 1 Register
Value
Value
Value
Value
Value
Write
Write
0
1
0
1
0
1
The corresponding port bit functions normally.
The corresponding port bit carries its alternate signal as an output. See Table 12-
1.
The corresponding port bit, as an output, is driven high and low.
The corresponding port bit, as an output, is open-drain.
The corresponding port bit is input.
The corresponding port bit is an output.
These bits are ignored.
The port buffer (bit 0) is written with the value of this bit. The port buffer will be
transferred to the port output register on the next rising edge of the peripheral
clock
These bits are ignored.
The port buffer (bit 1) is written with the value of this bit. The port buffer will be
transferred to the port output register on the next rising edge of the peripheral
clock
(PEDCR)
(PEDDR)
(PEB0R)
(PEB1R)
(PEFR)
Description
Description
Description
Description
Description
Rabbit 4000 Microprocessor User’s Manual
(Address = 0x0076)
(Address = 0x0077)
(Address = 0x0078)
(Address = 0x0079)
(Address = 0x0075)